Visual Aspect Of dyslexia Chapter Facoetti

7
Chapter 8 Spa ti al Attent i on Di so rd e rs in Developmental Dyslexi a: Towards the Prevention of Read i ng Acqu is ition Deficits Andrea Facoetti Developmental dyslexia and phonological de coding Developmental dyslexia (DD) is a Ileurobiological disorder (see Habib, 2000; Demonet & Reilhac, 2012 in the present book for reviews) characterized by difficulties in reading acquisition despite adequate intelligence, conventional education, and motivation (American Psychiatric Association, 1994). It is widely believed that impaired phonologi- cal processing characterizes individuals with DD (see RanlUs, 2003; Vellutino et aI., 2004; Shaywitz & Shaywitz, 2005; Gabrieli, 2009 for reviews). Thus children and adults with DD display poor phonological awareness, slow lexical retrieval, and poor phonological short- term memory. These phonological deficits interfere with one of the most critical skills for successful reading acquisition, that is, phonological decoding (e.g. Ziegler et aI., 2003; Ziegler & Goswami, 2005). Phonological decoding is based on letter-to-sound conver- sion, allowing children to make the connection between novel letter strings and words that are already stored in their phonological (spoken word) lexicon (Share, 1995). Efficient phonological decoding requires accurate auditory representations at the phoneme level (e.g. Harm & Seidenberg, 1999; Perry et aI., 2007). Since Italian letter- to-sound orthogra- phy is particularly regular, phonological decoding is crucial for learning to read. Nevertheless, it is also essential for learning to read in more irr egular letter-to-sound orthographies, such as English (Share, 1995). Devel opmental dyslexia and auditory processing Many studies have sought to explain impaired phonological skills in terms of lower-level deficits, with special reference to sensory and aHentional auditory processing. They indi- cate that au ditory deficits impair speech perception, whic h, in turn, affects grapheme-to- phoneme mapping and phonological s hort - term memory (Ramus, 2003). Indeed, developmental deficits that affect speech perception do increase the risk of language and literacy problems. Recent biobehavioural evidence supports the idea that individuals with DD and/or with specific language impairment (SU) are impaired in their perception

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Transcript of Visual Aspect Of dyslexia Chapter Facoetti

Page 1: Visual Aspect Of dyslexia Chapter Facoetti

Chapter 8

Spatial Attention Disorders in Developmental Dyslexia Towards the Prevention of Reading Acquisition Deficits

Andrea Facoetti

Developmental dyslexia and phonological decoding Developmental dyslexia (DD) is a Ileurobiological disorder (see Habib 2000 Demonet amp

Reilhac 2012 in the present book for reviews ) characterized by difficulties in reading

acquisition despite adequate intelligence conventional education and motivation

(American Psychiatric Association 1994) It is widely believed that impaired phonologishy

cal processing characterizes individuals with DD (see RanlUs 2003 Vellutino et aI 2004

Shaywitz amp Shaywitz 2005 Gabrieli 2009 for reviews) Thus children and adults with DD

display poor phonological awareness slow lexical retrieval and poor phonological shortshy

term memory These phonological deficits interfere with one of the most critical skills for

successful reading acquisition that is phonological decoding (eg Ziegler et aI 2003

Ziegler amp Goswami 2005) Phonological decoding is based on letter-to-sound convershy

sion allowing children to make the connection between novel letter strings and words

that are already stored in their phonological (spoken word) lexicon (Share 1995) Efficient

phonological decoding requires accurate auditory representations at the phoneme level

(eg Harm amp Seidenberg 1999 Perry et aI 2007) Since Italian letter-to-sound orthograshy

phy is particularly regular phonological decoding is crucial for learning to read

Nevertheless it is also essential for learning to read in more irregular letter-to-sound

orthographies such as English (Share 1995)

Developmental dyslexia and auditory processing Many studies have sought to explain impaired phonological skills in terms of lower-level

deficits with special reference to sensory and aHentional auditory processing They indishy

cate that auditory deficits impair speech perception which in turn affects grapheme-toshy

phoneme mapping and phonological short -term memory (Ramus 2003) Indeed

developmental deficits that affect speech perception do increase the risk of language

and literacy problems Recent biobehavioural evidence supports the idea that individuals

with DD andor with specific language impairment (SU) are impaired in their perception

l

l

132 I VISUAL ASPECTS OF DYSLEXIA

with both DD andor SLi (eg Geiger et al 1994 Facoetti et aI 2003 Stevens et aI 2008)

In particular these studies consistently demonstrate that the inhibitory aspects of attenshy

tion-that are crucial for perceptual noise exclusion-can be remediated by appropriate

rehabilitation programmes (Geiger et aI 1994 Facoetti et al 2003 Stevens et al 2008)

Our data demonstrate that a pure visual spatial treatment (based on rapid letter string

presentation) not only improved phonological decoding but also improved the inhibitory

attentionalmechanisms required for left-to-right serial searching ofletter strings (Facoetti

amp Lorusso unpublished data see Vidyasagar amp Pammer 2010 for discussion) In fact

even the pure phonologically-based treatment programmes that are typically used to

rehabilitate DD have to make use of fundamental auditory attentional mechanisms

It is intriguing to note that playing action video games significantly improves visual

attentional orienting and engagement (for a recent review see Dye et al 2009) Critically

this increase in rapid attentional orienting generalizes to various tasks beyond game situshy

ations Thus action video game play improves general attentional resources allowing

garners to better aHocate their attention across both space and time (Dye et al 2009)

Video gaming might therefore provide an efficient attentional training regimen to

induce reading improvement in DD children as well as in pre-reading children at risk of

DO Overall the findings reported here offer the possibility of developing new more

efficient treatments ofDD through the use of intensive trainil1g to improve multisensory

orienting of spatial attention in pre-reading children at risk of reading failure

Acknowledgements

This chapter is dedicated to Giulio Camilla and Tiziana AF is supported by grants from

the ItaJian Ministry of University and Scientific Research (PRIN2007) CARIPARO

Foundation (Borse di Dottorato CARIPARO 2009) and the University of Padova

(Assegni di Ricerca 2009 and Progetto di Ateneo 2009) I sincerely thank Milena Ruffino

Anna Noemi Trussardi Simone Gori and Sandro Franceschini for helpful discussions

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SPATIAL ATTENTION DISORDERS IN DEVELOPMENTAL DYSLEXIA I 135

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1135 SPATIAL ATTENTION DISORDERS IN DEVELOPMENTAL DYSLEXIA

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visual-spa tial attention and reading ability Nelroreport 152215-18

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reading Evidence from neglect dyslexia Neu7Opsyc1iOlogia 351075-85

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Martelli rv Di Filippo G Spinelli D amp Zoccolotti P (2009) Crowding reading and developmental

dyslexia journal ofVision 9 l-J 8

McCandliss BD Cohen L amp Dehaene S (2003) The visual word form area expertise for reading in

the fusifOTl11 gyrus Trellds ill Cognitive Sciellce 7293-9

venghini D Finzi A Benassi N Bolzani R Facoetti A Giovagnoli S et a (2010) Different

underlying neurocognitive deficits in developmental dyslexia a comparative study

Nellropsychologia 48 863-72

Montani Y Facoetti A amp Zorzi M (2010) Crowding effect in lexical and sublcxical recognition

Perception 39 148

Pammer K Lavis R Hansen P amp Cornelissen PL (2004) Symbol-string sensilivity and childrens

reading Brain amp Language 89 601-10

Pelli DG (2008) Crowding A cm-tical constraint on object recognition Currcnt Opinion in Neurobiology 18445-51

Pennington BF (2006) From single to mUltiple deficit models of developmental disorders Cognition 101385-413

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accounf of dyslexia HIman Brain iI-lopping 30 2278-92

Perry c Ziegler Je amp Zorzi M (2007) Ncsted incremental modding in the development of

computational theories The CD P+ model ofreading aloud Psychological Review 114273-315

Plaza M amp Cohen E (2006) The contribution of phonological awareness and visual attention in early

reading and spelling Dyslexia 1367-76

Potter Me Staub A amp OConnor DH (2002) The time course of competition for attention Attention

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dysfunction Current Opiniol1 in Neurobiology 13212-18

Renvall H amp Hari R (2002) Auditory cortical responses to speech-like stimuli in dyslexic adults

jOtlrnal afCognitive Neuroscience 14757-68

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Roach NW amp Hogben JH (2007) Impaired filtering of behaviourally irrelevant visual information

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Page 2: Visual Aspect Of dyslexia Chapter Facoetti

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132 I VISUAL ASPECTS OF DYSLEXIA

with both DD andor SLi (eg Geiger et al 1994 Facoetti et aI 2003 Stevens et aI 2008)

In particular these studies consistently demonstrate that the inhibitory aspects of attenshy

tion-that are crucial for perceptual noise exclusion-can be remediated by appropriate

rehabilitation programmes (Geiger et aI 1994 Facoetti et al 2003 Stevens et al 2008)

Our data demonstrate that a pure visual spatial treatment (based on rapid letter string

presentation) not only improved phonological decoding but also improved the inhibitory

attentionalmechanisms required for left-to-right serial searching ofletter strings (Facoetti

amp Lorusso unpublished data see Vidyasagar amp Pammer 2010 for discussion) In fact

even the pure phonologically-based treatment programmes that are typically used to

rehabilitate DD have to make use of fundamental auditory attentional mechanisms

It is intriguing to note that playing action video games significantly improves visual

attentional orienting and engagement (for a recent review see Dye et al 2009) Critically

this increase in rapid attentional orienting generalizes to various tasks beyond game situshy

ations Thus action video game play improves general attentional resources allowing

garners to better aHocate their attention across both space and time (Dye et al 2009)

Video gaming might therefore provide an efficient attentional training regimen to

induce reading improvement in DD children as well as in pre-reading children at risk of

DO Overall the findings reported here offer the possibility of developing new more

efficient treatments ofDD through the use of intensive trainil1g to improve multisensory

orienting of spatial attention in pre-reading children at risk of reading failure

Acknowledgements

This chapter is dedicated to Giulio Camilla and Tiziana AF is supported by grants from

the ItaJian Ministry of University and Scientific Research (PRIN2007) CARIPARO

Foundation (Borse di Dottorato CARIPARO 2009) and the University of Padova

(Assegni di Ricerca 2009 and Progetto di Ateneo 2009) I sincerely thank Milena Ruffino

Anna Noemi Trussardi Simone Gori and Sandro Franceschini for helpful discussions

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achievement Brain ald Language 106 29--40

Bosse a q

Bosse

de

Bourn

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pn

Cohen (E

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Facbe

a

Faco

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Faco

Faco

Faclt

Fac

Fer

Fis

I

t al 2008)

of attellshy

ppropriate al 2008)

per string in hibjtory

~ (Facoetti l)In fact

Iy used to

srns res visual

Critically [m e situshy

allowing

2009)

imen to t risk of

rts from lrPARO

Padova

RufflIlo ions

13Jld

1-13-8

fa iling

ns rJcy

SPATIAL ATTENTION DISORDERS IN DEVELOPMENTAL DYSLEXIA I 133

Bosse ML amp Valodis S (2009) IntJuence of the visual attention span on child reading performance

a cross-sectional studv jVl1llal ofResearch n Reading 32 230-53

Bosse ML Tainturier MJ amp Valdois S (2007) Developmental dyslexia The visual attention span

deficit hypothesis Cogitolz 104 198-230

Bouma H (1970) Interaction effects in parafovealletter recognition Nature 226 177-S

Buchholz j amp McKone E (2004) Adults with dyslexia show deficits on spatial frequency doubling

and visua l attention tasks Dyslexia 10 2~3

Carrasco MWilliams P amp Yesburum Y (2002) Covert attention increascs patial resolution with or

without masks Support for signal enhancement jOlmal ofVision 2 467-79

Castles A amp Coltheart M (2004) Is there a causallillk from phonological awareness to success in

learning to read Cognition 9177-111

Cestnick L amp Coltheart M (1999) The relationship between language-processing and visual

processing deficit in developmental dyslexia CognitiOll 71231-55

Cohen L amp Dehaene S (2009) Ventral and dorsal contributions to word reading In MS Gazwniga

(Ed) The Cognitive Neuroscience (4th edn) pp 789-804 Cambridge MA The MIT Press

Corbetta 11 amp Shulman GL (2002) Control of goal-directed and stimulus-driven attention in the

brain Nature Review NetlrGscicnce 3 201-15

Cornelissen P Richardsoll A Ivlason A Fowler S amp Stein J (1995) Contrast sensitivity and

coherent motion detection measured at photopic luminance levels in dyslexics and controls Vision

Research 35 1483-94

DeFries Je (1985) Colorado reading project In DB Gray amp JF Kavanagh (Eds) Biobchavioral measures ofdyslexia pp 107-122 Parkton MD York Press

Demonet jF amp Reilhac C (2012) A Neurological Account of Dyslexia InJ Stein amp Z Kapoula (Eds)

Visual Aspects ofDyslexia pp 1-14 Oxford Oxford University Press

Dosher B N amp Lu Z (2000) Noise exclusion in spatial attention Psychological Science 11 139-46

Dye MW Green eS amp Bavein D (2009) Increasing speed of processing with action middotideo games

Current Direction in Psychological Scierlce 18321- 6

Eden GF amp Zeffiro TA (1998) Neural systems affected in developmental dyslexia revealed by

functional neuroimaging Neuron 21279-82

Enns JT amp Di Lollo V (2000) hat s new in vi sual masking Trwds in Cogllitive Science 4 345-52

Facoetti A Lorusso M L Paganoni P Umilta e amp Mascetti GG (2003) The role otvisuospatial

attention in developmental dyslexia evidence from a rehabilitation study Cognitive Brain Research

15154-64

Facoetti A Ruffino M Peru A Paganoni P amp Chelazzi L (2008) Sluggish engagement and

disengagc111cnt of non-spatial attention in dyslexic children Cortex 44 1221- 33

Facoetti A Gori S Bigoni A Ruffino M Molteni M amp Cecchini P (2009) Ivfagnocellular-dorsal

pathway and sub-lexical route in developmental dyslexia Perception 38103

Facoetti A Corradi N Ruffino M God S amp Zorzi Ivl (201 Oa) Visual spatial attention and speech

seglllentation are both impaired in preschoolers at familial risk for developmental dyslexia Dyslexia

16226-39

Facoetti A Trussardi AN Ruffino M Lorusso ML Ca ttaneo e Galli R et al (2010b)

Multisensory spatial attention deficit s are predictive of phonological decoding skills in development

dyslexia journal ofCognitive Neuroscience 22 1011-25

Facoetti A Ruffino M Gori 5 Rigoni A Benassi M Bolzani R et al (2010c) On the relationship

between magnocellular pathway and automatic attentional orienling evidences from developmentalshy

dyslexia jOllnzal nfVision 10 281

Ferretti G Mazzotti S amp Brizzolara D (2008) Visual scanning and reading ability in normal and

dyslexic children Behavioral Neurology 19 87-92

Fisher JH (1905) Cae of congenital word blindness (Inability to learn to read) Ophthalmological

Review 24 315- 18

134 I VISUAL ASPECTS OF DYSLEXIA

Franceschini S Gori S Ruffino lvI Pedrolli K amp Facoetti A (2012) A causal link between visual

spatial attention and reading acquisition ClIrrellt Biology 221-6

Franceschini S Corradi N Ruffino M Gori S Giancsini T amp Faeoett A (2010) Atypical local

perception precedence in preschoQler poor readers Perception 3979

Fritz JB Elhilali M David SY amp Shamiddotmma SA (2007) Auditory attention focusing the searchlight

on sound ClIrrent Opinion ill NeurobiQlogy 17437-55

Gabrieli JD (2009) Dyslexia a new synergy between education and cognitive neuroscience Sciellce 325280-3

Gayan J amp Olson RK (2001) Genetic and environmental influences on orthographic and

phonological skills in children with reading disabilities Developmental Nell rop_ych ology 20 483-507

Geiger G Lettvin JY amp Fanhle M (1994) Dyslexic children learn a new visual strategy for reading

a controlled experiment Vision Research 34 J223-33

Geiger G Cattaneo c Galli R Pozzoli U Lorusso ML Facoetti A et al (2008) Wide and

diffuse perceptual modes characterized dyslexics in vision and audition PerceptiOll 37 1745-64

Gormley Jr WT Philips D amp Gayer T (2008) Preschool programs can boost school readiness

Science 320 1723-24

Goswami U (2003) Wlly theories about developmental dyslexia require developmental designs

Trends ill Cognitive Science 7 534-40

Goswami U Thomson J Rimiddotchardson u Stainthorp R Hughes D Rosen S et al (2002)

Amplitude envelope onsets and developmental dyslexia A new hypothesi s Proceedings of the National Academy ofSciences of the Ullited StMes ofAmerica 9910911-16

Goswami U Wang I-IL Cruz A Fosker T Mead N amp Huss M (2011) Language-universal

sensory deficits in developmental dyslexia English Spanish and Chinese JOllmal ofCognitive Nellrosciel1ce 23325-37

Griinling c Ligges M Huonker R Klingert M Mentzel HT Rzanny R et al (2004) Dyslexia

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Hallgren B (950) Specific dyslexia (congenital word-blindness) a clinical and genetic study Acta Psychiatrica mid Ncwmiddotology Supplemellt 65 1-2R7

Hari R amp RenvaIl H (2001) Impaired processing of rapid stimulus sequences in dyslexia Trends in Cogn itive Sciellce 5 525-32

Hari R Remall H amp Tanskanen T (2001) Left minineglect in dyslexic adults Brain 124 1373- 80

Harm MW amp Seidenberg MS (1999) Phonology reading acquisition and dyslexia insights from

connectionist models Ps-ychological Review 106491-528

Hawelb S amp Wimmer H (2005) Impaired visual processing of multi-element arrays is associated

with increased number of eye movements in dyslexic reading Visiol1 Research 45855-63

Hawe1ka S Huber c amp Vimmer H (2006) Impaired visual processing oflette r and digit strings in

adult dyslexic readers Visiol1 Research 46 718-23

Hoeft F Hernandez A McMillon G Taylor-Hill H Martindale JL Meye A cl al (2006)

Neural basis of dyslexia a comparison between dyslexic and nondyslcxic children eqllated for

reading ability JOllrnal ofNeuroscience 26 10700-8

Jones MW Branigan HP amp Kelly M L (2008) Visllal deficits in developmental dyslex ia

rela tionships between non -lingllistic visual tasks and their contribution to components of reading

Dyslexia 14 95-115

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Kevan A amp Pammer K (2009) Predicting early reading skills from pre-reading measures of dorsal

stream functioning NeulOps)chologia 47 3174--8 J

p

Rm

RC

Ro

Ruf

R Ui

Sh

visual

local

chlight

nee

f3-507

d ing

fi

la

II

o

n

SPATIAL ATTENTION DISORDERS IN DEVELOPMENTAL DYSLEXIA I 135

Kinsey K Rormiddotc M Hans n P Richardson A amp Stein J (2004) t-lagnocdlular mediated

visual-spatlal attention and reading ability Nellroreport 15 2215- 18

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reading Evidence from neglect dyslCoxia Ncuropsychologia 35 1075-85

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ERP evid ence for amodaJ sluggish attentional shifting in developmental dyslexia Nellropsyrhologia 48 4 125- 35

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anatomical evidence fo r a magnocellular defect in developmental dyslexia Proceedillgs of the National Academy o(Scicnccs of United States ofA merica 88 7943-7

tvlartelli M Di FiLippo G Spinelli D amp Zoccolotti P (2009) Crowding reading and developmental

dyslexia jOllrnal of Vision 9 1- 18

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the fusiform gyrus Trellds ill Cogl1itive Science 7 293-9

Menghini D Finzi A Benassi M Bolzani R Facoetti A Giovagnoli 5 et al (2010) Different

underlying neurocognitive deficits in developlilental dyslexia a comparative study

Neuropsyclzolugia 48 863- 72

Montani V Facoetti A amp Zorzi M (2010) Crowding effect in lexical and sublexical recognition

Perception 39 148

Pam m er K Lavis R Hansen P amp Cornelissen PL (2084) Symbol-string sensitivity and childrens

reading Brain 6- Langwlge 89 601-10

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Neurobiology 18445-51

Pennington BmiddotF (2006) From single to multiple deticit models of developmental disorders Cognition 101385-413

Pemet e Anderssn J Paulesu E amp D emonet JF (2009) When ail hypotheses are right a multifocal

accounf of dyslexia J-hol1al1 Bmil1 A1appil1g 30 2278-92

Perry e Ziegler Je amp Zorzi M (2007) N ested incremental modehng in th e development of

computational theories The CDP+ model of reading aloud Psychological Review 114273- 315

Plaza M amp (ohen E (2006) The contribution of phonological awareness and visual altention in early

reading and sp_c1ling Dyslexia 1367-76

Potter Me Staub A amp OConnor DH (2002) Th e time course of CQmpetition for attention Attention

is initially labile journal ofExperimelltal Psychology Human Pcrception and Performance 28 1149-62

Pugh KR Mend W E Jenner AR Kats L Prost Sj Lee JR et al (2000) Functional

neuroimaging studies of reading and reading diGability (developmental dyslexia) Mental Retardation ami Developmental Disabilities Research Rcvh1vs 6 207-13

Ramus F (2003) Developmental dyslexia specific phonological deficit or general sensorimotor

dysfun ction Current Opilion in Neurobiology 13212-18

Renvall H amp Hari R (2002) Auditory cortical responses to speech-like stimuli in dyslexic adults

joumal ofCogl1itive Neuroscience 14757- 68

Reynolds JH amp Heeger DJ (2009) The normalization model of attention Neurol 61168-85

Roach NW amp Hogben JH (2007) Impaired filtering of behaviourally irrdevant visual information

in dyslexia Bmir 130 771- 85

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exclusion deficit or spatial attention dysfunction Perccption 39 80

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1135 SPATIAL ATTENTION DISORDERS IN DEVELOPMENTAL DYSLEXIA

Kinsey K Rose M Hansen PRichardson A amp Stein J (2004) Magnocellular mediated

visual-spa tial attention and reading ability Nelroreport 152215-18

Ladavas E Umilta c amp Mapelli D (1997) Lexical and semantic processing in the absence of word

reading Evidence from neglect dyslexia Neu7Opsyc1iOlogia 351075-85

Lallier M Iainturier iVJ Dering BDonnadieu 5 Yaldois 5 Thierry G (2010) Behavioral and

ERP evidence for amodal sluggish attentional shifting in developmental dyslexia NeufOpsychologia 484125-35

Livingstone MS Rosen GD Drisbne FW amp Gabburda AJv (1991) Physiological and

anatomical evid_ence for a l11agnocellular defect in developmental dyslexia Proceedillgs of the Natiollal Academy ofSciences o(United States ofAmerica 88 7943-7

Martelli rv Di Filippo G Spinelli D amp Zoccolotti P (2009) Crowding reading and developmental

dyslexia journal ofVision 9 l-J 8

McCandliss BD Cohen L amp Dehaene S (2003) The visual word form area expertise for reading in

the fusifOTl11 gyrus Trellds ill Cognitive Sciellce 7293-9

venghini D Finzi A Benassi N Bolzani R Facoetti A Giovagnoli S et a (2010) Different

underlying neurocognitive deficits in developmental dyslexia a comparative study

Nellropsychologia 48 863-72

Montani Y Facoetti A amp Zorzi M (2010) Crowding effect in lexical and sublcxical recognition

Perception 39 148

Pammer K Lavis R Hansen P amp Cornelissen PL (2004) Symbol-string sensilivity and childrens

reading Brain amp Language 89 601-10

Pelli DG (2008) Crowding A cm-tical constraint on object recognition Currcnt Opinion in Neurobiology 18445-51

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accounf of dyslexia HIman Brain iI-lopping 30 2278-92

Perry c Ziegler Je amp Zorzi M (2007) Ncsted incremental modding in the development of

computational theories The CD P+ model ofreading aloud Psychological Review 114273-315

Plaza M amp Cohen E (2006) The contribution of phonological awareness and visual attention in early

reading and spelling Dyslexia 1367-76

Potter Me Staub A amp OConnor DH (2002) The time course of competition for attention Attention

is initially labile journal ofExperimenlil1 PsycilOlogy HlImal1 Perceptiollllnd Performame 28 1149-62

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dysfunction Current Opiniol1 in Neurobiology 13212-18

Renvall H amp Hari R (2002) Auditory cortical responses to speech-like stimuli in dyslexic adults

jOtlrnal afCognitive Neuroscience 14757-68

Reynolds JH amp H eeger DJ- (2009) The normalization model of attention Neuroll 61 168-85

Roach NW amp Hogben JH (2007) Impaired filtering of behaviourally irrelevant visual information

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multi-element arrays Psychological Research 65107-18

Vellutino FR Fletcher JM Snowling MJ amp Scanlon DM (2004) Specific reading disability

(dyslexia) What have wc learned in tiLe past four decades )ollll1al ofChild Psychology and Psychiatty 45 2-40

Vidyasagar TR amp Pammer K (2010) Dyslexia a deficit in visuo-spatial attention not in

phonological processing Trends il Cognitive Science 1457-63

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Wright BA Bowen RW amp Zecker SG (2000) Nonlinguistic perceptual deficits associated mth

reading and language disorders CIlTent Opinion ill Neurobiology 10482-6

Ziegler JC amp Goswami U (2005) Reading acquisition developmental dyslexia and skilled reading

across languages A psycholinguistic grain size theory Psychological Bulletin 1313-29

Zieglb Je Perry C Wyatt AM Ladner D t Schulte-Korne G (2003) Developmental dyslexia in

different languages Language-specific or universal lotlnal Ofpound1)crimental Child Psychology 86169-93

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predict language learning impairment Proceedings of the National Academy ofScicnces ofthe United States ofAmerica 2714110-15

Ziegler JC Pech-Georgel C George F amp Lorenzi C (2009) Speech perception in noise deficits in

dyslexia Developmental Scicnce 12 732-45

Zorzi M (2005) Computational models of reading In G Houghton (Ed) Conncctionist modcls ill cogshynitive pSychology pp 403~H London Psychology Press

Zorzi M Barbiero C Facoetti A Lonciari I Carroni M Montico M Bravar L George F Pechshy

George C amp Ziegler J (2012) Extra-Large Letter Spacing Improves Reading in Dyslexia

Proceedings of the National Academy ofSciences of the United States ofAmcrica in press

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2009)

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Padova

RufflIlo ions

13Jld

1-13-8

fa iling

ns rJcy

SPATIAL ATTENTION DISORDERS IN DEVELOPMENTAL DYSLEXIA I 133

Bosse ML amp Valodis S (2009) IntJuence of the visual attention span on child reading performance

a cross-sectional studv jVl1llal ofResearch n Reading 32 230-53

Bosse ML Tainturier MJ amp Valdois S (2007) Developmental dyslexia The visual attention span

deficit hypothesis Cogitolz 104 198-230

Bouma H (1970) Interaction effects in parafovealletter recognition Nature 226 177-S

Buchholz j amp McKone E (2004) Adults with dyslexia show deficits on spatial frequency doubling

and visua l attention tasks Dyslexia 10 2~3

Carrasco MWilliams P amp Yesburum Y (2002) Covert attention increascs patial resolution with or

without masks Support for signal enhancement jOlmal ofVision 2 467-79

Castles A amp Coltheart M (2004) Is there a causallillk from phonological awareness to success in

learning to read Cognition 9177-111

Cestnick L amp Coltheart M (1999) The relationship between language-processing and visual

processing deficit in developmental dyslexia CognitiOll 71231-55

Cohen L amp Dehaene S (2009) Ventral and dorsal contributions to word reading In MS Gazwniga

(Ed) The Cognitive Neuroscience (4th edn) pp 789-804 Cambridge MA The MIT Press

Corbetta 11 amp Shulman GL (2002) Control of goal-directed and stimulus-driven attention in the

brain Nature Review NetlrGscicnce 3 201-15

Cornelissen P Richardsoll A Ivlason A Fowler S amp Stein J (1995) Contrast sensitivity and

coherent motion detection measured at photopic luminance levels in dyslexics and controls Vision

Research 35 1483-94

DeFries Je (1985) Colorado reading project In DB Gray amp JF Kavanagh (Eds) Biobchavioral measures ofdyslexia pp 107-122 Parkton MD York Press

Demonet jF amp Reilhac C (2012) A Neurological Account of Dyslexia InJ Stein amp Z Kapoula (Eds)

Visual Aspects ofDyslexia pp 1-14 Oxford Oxford University Press

Dosher B N amp Lu Z (2000) Noise exclusion in spatial attention Psychological Science 11 139-46

Dye MW Green eS amp Bavein D (2009) Increasing speed of processing with action middotideo games

Current Direction in Psychological Scierlce 18321- 6

Eden GF amp Zeffiro TA (1998) Neural systems affected in developmental dyslexia revealed by

functional neuroimaging Neuron 21279-82

Enns JT amp Di Lollo V (2000) hat s new in vi sual masking Trwds in Cogllitive Science 4 345-52

Facoetti A Lorusso M L Paganoni P Umilta e amp Mascetti GG (2003) The role otvisuospatial

attention in developmental dyslexia evidence from a rehabilitation study Cognitive Brain Research

15154-64

Facoetti A Ruffino M Peru A Paganoni P amp Chelazzi L (2008) Sluggish engagement and

disengagc111cnt of non-spatial attention in dyslexic children Cortex 44 1221- 33

Facoetti A Gori S Bigoni A Ruffino M Molteni M amp Cecchini P (2009) Ivfagnocellular-dorsal

pathway and sub-lexical route in developmental dyslexia Perception 38103

Facoetti A Corradi N Ruffino M God S amp Zorzi Ivl (201 Oa) Visual spatial attention and speech

seglllentation are both impaired in preschoolers at familial risk for developmental dyslexia Dyslexia

16226-39

Facoetti A Trussardi AN Ruffino M Lorusso ML Ca ttaneo e Galli R et al (2010b)

Multisensory spatial attention deficit s are predictive of phonological decoding skills in development

dyslexia journal ofCognitive Neuroscience 22 1011-25

Facoetti A Ruffino M Gori 5 Rigoni A Benassi M Bolzani R et al (2010c) On the relationship

between magnocellular pathway and automatic attentional orienling evidences from developmentalshy

dyslexia jOllnzal nfVision 10 281

Ferretti G Mazzotti S amp Brizzolara D (2008) Visual scanning and reading ability in normal and

dyslexic children Behavioral Neurology 19 87-92

Fisher JH (1905) Cae of congenital word blindness (Inability to learn to read) Ophthalmological

Review 24 315- 18

134 I VISUAL ASPECTS OF DYSLEXIA

Franceschini S Gori S Ruffino lvI Pedrolli K amp Facoetti A (2012) A causal link between visual

spatial attention and reading acquisition ClIrrellt Biology 221-6

Franceschini S Corradi N Ruffino M Gori S Giancsini T amp Faeoett A (2010) Atypical local

perception precedence in preschoQler poor readers Perception 3979

Fritz JB Elhilali M David SY amp Shamiddotmma SA (2007) Auditory attention focusing the searchlight

on sound ClIrrent Opinion ill NeurobiQlogy 17437-55

Gabrieli JD (2009) Dyslexia a new synergy between education and cognitive neuroscience Sciellce 325280-3

Gayan J amp Olson RK (2001) Genetic and environmental influences on orthographic and

phonological skills in children with reading disabilities Developmental Nell rop_ych ology 20 483-507

Geiger G Lettvin JY amp Fanhle M (1994) Dyslexic children learn a new visual strategy for reading

a controlled experiment Vision Research 34 J223-33

Geiger G Cattaneo c Galli R Pozzoli U Lorusso ML Facoetti A et al (2008) Wide and

diffuse perceptual modes characterized dyslexics in vision and audition PerceptiOll 37 1745-64

Gormley Jr WT Philips D amp Gayer T (2008) Preschool programs can boost school readiness

Science 320 1723-24

Goswami U (2003) Wlly theories about developmental dyslexia require developmental designs

Trends ill Cognitive Science 7 534-40

Goswami U Thomson J Rimiddotchardson u Stainthorp R Hughes D Rosen S et al (2002)

Amplitude envelope onsets and developmental dyslexia A new hypothesi s Proceedings of the National Academy ofSciences of the Ullited StMes ofAmerica 9910911-16

Goswami U Wang I-IL Cruz A Fosker T Mead N amp Huss M (2011) Language-universal

sensory deficits in developmental dyslexia English Spanish and Chinese JOllmal ofCognitive Nellrosciel1ce 23325-37

Griinling c Ligges M Huonker R Klingert M Mentzel HT Rzanny R et al (2004) Dyslexia

the possible benefit of multimodal int egration of fMRI- and EEG-data Journal ofNeural TranslI1ission 111 951-69

Habib M (2000) The neurological basis of developmental dyslexia an overview and working

hypothe~is Braitl 1232373-99

Hallgren B (950) Specific dyslexia (congenital word-blindness) a clinical and genetic study Acta Psychiatrica mid Ncwmiddotology Supplemellt 65 1-2R7

Hari R amp RenvaIl H (2001) Impaired processing of rapid stimulus sequences in dyslexia Trends in Cogn itive Sciellce 5 525-32

Hari R Remall H amp Tanskanen T (2001) Left minineglect in dyslexic adults Brain 124 1373- 80

Harm MW amp Seidenberg MS (1999) Phonology reading acquisition and dyslexia insights from

connectionist models Ps-ychological Review 106491-528

Hawelb S amp Wimmer H (2005) Impaired visual processing of multi-element arrays is associated

with increased number of eye movements in dyslexic reading Visiol1 Research 45855-63

Hawe1ka S Huber c amp Vimmer H (2006) Impaired visual processing oflette r and digit strings in

adult dyslexic readers Visiol1 Research 46 718-23

Hoeft F Hernandez A McMillon G Taylor-Hill H Martindale JL Meye A cl al (2006)

Neural basis of dyslexia a comparison between dyslexic and nondyslcxic children eqllated for

reading ability JOllrnal ofNeuroscience 26 10700-8

Jones MW Branigan HP amp Kelly M L (2008) Visllal deficits in developmental dyslex ia

rela tionships between non -lingllistic visual tasks and their contribution to components of reading

Dyslexia 14 95-115

Kevan A amp Pammer K (2008 ) Visual deficits in pre-readears at familial risk for dyslcxia Visioll Research 48 2835-9

Kevan A amp Pammer K (2009) Predicting early reading skills from pre-reading measures of dorsal

stream functioning NeulOps)chologia 47 3174--8 J

p

Rm

RC

Ro

Ruf

R Ui

Sh

visual

local

chlight

nee

f3-507

d ing

fi

la

II

o

n

SPATIAL ATTENTION DISORDERS IN DEVELOPMENTAL DYSLEXIA I 135

Kinsey K Rormiddotc M Hans n P Richardson A amp Stein J (2004) t-lagnocdlular mediated

visual-spatlal attention and reading ability Nellroreport 15 2215- 18

Ladavas E Umilta C amp Mapclli D (1997) Lexical and semantic processing in the absence of word

reading Evidence from neglect dyslCoxia Ncuropsychologia 35 1075-85

Lallier M Tainturier M J Dering R Donnadieu S Valdois S Thierry G (2010) Behavioral and

ERP evid ence for amodaJ sluggish attentional shifting in developmental dyslexia Nellropsyrhologia 48 4 125- 35

Livingstone MS Rosen GD D rislane FW amp Galaburda AM (1991) Physiological and

anatomical evidence fo r a magnocellular defect in developmental dyslexia Proceedillgs of the National Academy o(Scicnccs of United States ofA merica 88 7943-7

tvlartelli M Di FiLippo G Spinelli D amp Zoccolotti P (2009) Crowding reading and developmental

dyslexia jOllrnal of Vision 9 1- 18

McCandliss BD Cohen L amp Dehaen e S (2003) The visual word form area expertise for reading in

the fusiform gyrus Trellds ill Cogl1itive Science 7 293-9

Menghini D Finzi A Benassi M Bolzani R Facoetti A Giovagnoli 5 et al (2010) Different

underlying neurocognitive deficits in developlilental dyslexia a comparative study

Neuropsyclzolugia 48 863- 72

Montani V Facoetti A amp Zorzi M (2010) Crowding effect in lexical and sublexical recognition

Perception 39 148

Pam m er K Lavis R Hansen P amp Cornelissen PL (2084) Symbol-string sensitivity and childrens

reading Brain 6- Langwlge 89 601-10

Peili DG (2008) Crowding A cortical constraint on object recognition Current Opiniol1 in

Neurobiology 18445-51

Pennington BmiddotF (2006) From single to multiple deticit models of developmental disorders Cognition 101385-413

Pemet e Anderssn J Paulesu E amp D emonet JF (2009) When ail hypotheses are right a multifocal

accounf of dyslexia J-hol1al1 Bmil1 A1appil1g 30 2278-92

Perry e Ziegler Je amp Zorzi M (2007) N ested incremental modehng in th e development of

computational theories The CDP+ model of reading aloud Psychological Review 114273- 315

Plaza M amp (ohen E (2006) The contribution of phonological awareness and visual altention in early

reading and sp_c1ling Dyslexia 1367-76

Potter Me Staub A amp OConnor DH (2002) Th e time course of CQmpetition for attention Attention

is initially labile journal ofExperimelltal Psychology Human Pcrception and Performance 28 1149-62

Pugh KR Mend W E Jenner AR Kats L Prost Sj Lee JR et al (2000) Functional

neuroimaging studies of reading and reading diGability (developmental dyslexia) Mental Retardation ami Developmental Disabilities Research Rcvh1vs 6 207-13

Ramus F (2003) Developmental dyslexia specific phonological deficit or general sensorimotor

dysfun ction Current Opilion in Neurobiology 13212-18

Renvall H amp Hari R (2002) Auditory cortical responses to speech-like stimuli in dyslexic adults

joumal ofCogl1itive Neuroscience 14757- 68

Reynolds JH amp Heeger DJ (2009) The normalization model of attention Neurol 61168-85

Roach NW amp Hogben JH (2007) Impaired filtering of behaviourally irrdevant visual information

in dyslexia Bmir 130 771- 85

Ruffino tv1 Trussardi AN Gori S Finzi A Giovagnoli S Menghini D et al (2010a) Attcntional

engagem ent deficits in dyslexic children NellropsyciJologia 48 3793-801

Ruffino M Gori 5 Franceschini S amp Facoett i A (2010h) Developmental dyslexia Perceptual noise

exclusion deficit or spatial attention dysfunction Perccption 39 80

Shamma SA amp Micheyl e (2010) Behind the scenes of auditory perception Currcnt Opi1lio1l Neurobiology 20 361-6

1135 SPATIAL ATTENTION DISORDERS IN DEVELOPMENTAL DYSLEXIA

Kinsey K Rose M Hansen PRichardson A amp Stein J (2004) Magnocellular mediated

visual-spa tial attention and reading ability Nelroreport 152215-18

Ladavas E Umilta c amp Mapelli D (1997) Lexical and semantic processing in the absence of word

reading Evidence from neglect dyslexia Neu7Opsyc1iOlogia 351075-85

Lallier M Iainturier iVJ Dering BDonnadieu 5 Yaldois 5 Thierry G (2010) Behavioral and

ERP evidence for amodal sluggish attentional shifting in developmental dyslexia NeufOpsychologia 484125-35

Livingstone MS Rosen GD Drisbne FW amp Gabburda AJv (1991) Physiological and

anatomical evid_ence for a l11agnocellular defect in developmental dyslexia Proceedillgs of the Natiollal Academy ofSciences o(United States ofAmerica 88 7943-7

Martelli rv Di Filippo G Spinelli D amp Zoccolotti P (2009) Crowding reading and developmental

dyslexia journal ofVision 9 l-J 8

McCandliss BD Cohen L amp Dehaene S (2003) The visual word form area expertise for reading in

the fusifOTl11 gyrus Trellds ill Cognitive Sciellce 7293-9

venghini D Finzi A Benassi N Bolzani R Facoetti A Giovagnoli S et a (2010) Different

underlying neurocognitive deficits in developmental dyslexia a comparative study

Nellropsychologia 48 863-72

Montani Y Facoetti A amp Zorzi M (2010) Crowding effect in lexical and sublcxical recognition

Perception 39 148

Pammer K Lavis R Hansen P amp Cornelissen PL (2004) Symbol-string sensilivity and childrens

reading Brain amp Language 89 601-10

Pelli DG (2008) Crowding A cm-tical constraint on object recognition Currcnt Opinion in Neurobiology 18445-51

Pennington BF (2006) From single to mUltiple deficit models of developmental disorders Cognition 101385-413

Pernet c Anderssn J Paulesu E amp Demonet JF (2009) Vhen all hy-potheses are right a m ultifocal

accounf of dyslexia HIman Brain iI-lopping 30 2278-92

Perry c Ziegler Je amp Zorzi M (2007) Ncsted incremental modding in the development of

computational theories The CD P+ model ofreading aloud Psychological Review 114273-315

Plaza M amp Cohen E (2006) The contribution of phonological awareness and visual attention in early

reading and spelling Dyslexia 1367-76

Potter Me Staub A amp OConnor DH (2002) The time course of competition for attention Attention

is initially labile journal ofExperimenlil1 PsycilOlogy HlImal1 Perceptiollllnd Performame 28 1149-62

Pugh KR Mend WE lenner AR Kats L Frost SJ Lee JR et al (2000) Functional

neuroimaging studies of reading and reading disability (developmental dyslexia) Mental Retardation and Developmental Disabilities Research Reviews 6 207-13

Ramus F (2003) Developmental dyslexia specific phonological deficit or general sensorimotor

dysfunction Current Opiniol1 in Neurobiology 13212-18

Renvall H amp Hari R (2002) Auditory cortical responses to speech-like stimuli in dyslexic adults

jOtlrnal afCognitive Neuroscience 14757-68

Reynolds JH amp H eeger DJ- (2009) The normalization model of attention Neuroll 61 168-85

Roach NW amp Hogben JH (2007) Impaired filtering of behaviourally irrelevant visual information

in dyslexia Brain l3U 771-85

Ruffino M Trussardi AN Gori S Finzi A Ciovagnoli 5 Menghini D et al (2010a) Attentional

engagement deficits in dyslexic children NeliropsycilOlogia 483793-801

Ruffino M Gori 5 FranceschiniS amp Facoetti A (2010b) Developmental dyslexia Perceptual noise

excl usion deficit or spatial attention dysfunction Perceptiol1 39 80

Sharn ma SA amp Micheyl C (2010) Behind the scenes of auditory perception Currellt Opinion Neu robiology 20 361-6

136 I VISUAL ASPECTS OF DYSLEXIA

Share DL (1995) Phonological recoding and self- teaching Sine qua non of reading acquisition

Cognition 55151-218

Shaywitz SE amp Sha)~tz BA (2005) Dyslexia specific reading disability Biological Psychiatry 571301-9

Sieroff E Pollatsek A amp Posner M (1988) Recognition of visual letter strings following injury to the

posterior visual spatial attention system Cognitive Neuropsychology 5 427-49

Sperling AJ Lu ZL Manis FR amp Seidenberg MS (2005) Deficits in perceptual noise exclusion in

developmental dyslexia Nature Neuroscience 8 862-3

Stein J amp Walsh V (1997) To see but 110t to read The magnocellular theory of dyslexia Trends in NeuroSciencc 20 147-52

Stevens C Fanning J Coch D Sanders L amp Meville H (2008) Neural mechanisms of selective

auditory attcntional enhanced by computerized training ElectrophySiological evidence from

language-impaired and typicaUy developing children Brain ResClIrch 1205 55-69

Stevens C Sanders L amp Neville H (2006) NeurophysiologicaJ evidence for selective auditory

attention deficits in children mth specific language impairment Brain Research 111 143-52

Tallal P (2004) Improving language and literacy is a matter of time Nature Review Neuroscience 5721-8

Thomas CJ (1905) Congenital word blindness and its treatmcnt Ophthalmoscope 3 380--5

Turkeltaub PE Gareau L Flowers DL Zeffiro TA amp Eden GF (2003) Development of neural

mechanisms for reading Natnc Neuroscience 6 767-73

VaJdois S Bosse ML amp Tainturier MJ (2004) The cognitive deficits responsible for developmental

dyslexia review of evidence for a selective visual attentional disorder Dyslexia 10339-63

Valdois S Carbonnel SJuphard A Baciu M Ans B Peyrin C ct al (2006) Polysyllabic

pseudo-word processing in reading and lexical decision Converging evidencefrom behavioral data

connectionist simulations and functional MRI Bmin Research 1085149- 62

Van der Lubbe RH amp Keuss PJ (200 1) Focused attention reduces the effect oflJtcral interference in

multi-element arrays Psychological Research 65107-18

Vellutino FR Fletcher JM Snowling MJ amp Scanlon DM (2004) Specific reading disability

(dyslexia) What have wc learned in tiLe past four decades )ollll1al ofChild Psychology and Psychiatty 45 2-40

Vidyasagar TR amp Pammer K (2010) Dyslexia a deficit in visuo-spatial attention not in

phonological processing Trends il Cognitive Science 1457-63

Whitney C amp Cornelissen P (2005) Letter position encoding and dyslexia loumal ofResearch ill Rcadirg 28 274-301

Wright BA Bowen RW amp Zecker SG (2000) Nonlinguistic perceptual deficits associated mth

reading and language disorders CIlTent Opinion ill Neurobiology 10482-6

Ziegler JC amp Goswami U (2005) Reading acquisition developmental dyslexia and skilled reading

across languages A psycholinguistic grain size theory Psychological Bulletin 1313-29

Zieglb Je Perry C Wyatt AM Ladner D t Schulte-Korne G (2003) Developmental dyslexia in

different languages Language-specific or universal lotlnal Ofpound1)crimental Child Psychology 86169-93

Ziegkr JC Pech-Georgel C George F Alario Fx Lorenzi C (2005) Deficits in speech perception

predict language learning impairment Proceedings of the National Academy ofScicnces ofthe United States ofAmerica 2714110-15

Ziegler JC Pech-Georgel C George F amp Lorenzi C (2009) Speech perception in noise deficits in

dyslexia Developmental Scicnce 12 732-45

Zorzi M (2005) Computational models of reading In G Houghton (Ed) Conncctionist modcls ill cogshynitive pSychology pp 403~H London Psychology Press

Zorzi M Barbiero C Facoetti A Lonciari I Carroni M Montico M Bravar L George F Pechshy

George C amp Ziegler J (2012) Extra-Large Letter Spacing Improves Reading in Dyslexia

Proceedings of the National Academy ofSciences of the United States ofAmcrica in press

150 1m the pag

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Page 4: Visual Aspect Of dyslexia Chapter Facoetti

134 I VISUAL ASPECTS OF DYSLEXIA

Franceschini S Gori S Ruffino lvI Pedrolli K amp Facoetti A (2012) A causal link between visual

spatial attention and reading acquisition ClIrrellt Biology 221-6

Franceschini S Corradi N Ruffino M Gori S Giancsini T amp Faeoett A (2010) Atypical local

perception precedence in preschoQler poor readers Perception 3979

Fritz JB Elhilali M David SY amp Shamiddotmma SA (2007) Auditory attention focusing the searchlight

on sound ClIrrent Opinion ill NeurobiQlogy 17437-55

Gabrieli JD (2009) Dyslexia a new synergy between education and cognitive neuroscience Sciellce 325280-3

Gayan J amp Olson RK (2001) Genetic and environmental influences on orthographic and

phonological skills in children with reading disabilities Developmental Nell rop_ych ology 20 483-507

Geiger G Lettvin JY amp Fanhle M (1994) Dyslexic children learn a new visual strategy for reading

a controlled experiment Vision Research 34 J223-33

Geiger G Cattaneo c Galli R Pozzoli U Lorusso ML Facoetti A et al (2008) Wide and

diffuse perceptual modes characterized dyslexics in vision and audition PerceptiOll 37 1745-64

Gormley Jr WT Philips D amp Gayer T (2008) Preschool programs can boost school readiness

Science 320 1723-24

Goswami U (2003) Wlly theories about developmental dyslexia require developmental designs

Trends ill Cognitive Science 7 534-40

Goswami U Thomson J Rimiddotchardson u Stainthorp R Hughes D Rosen S et al (2002)

Amplitude envelope onsets and developmental dyslexia A new hypothesi s Proceedings of the National Academy ofSciences of the Ullited StMes ofAmerica 9910911-16

Goswami U Wang I-IL Cruz A Fosker T Mead N amp Huss M (2011) Language-universal

sensory deficits in developmental dyslexia English Spanish and Chinese JOllmal ofCognitive Nellrosciel1ce 23325-37

Griinling c Ligges M Huonker R Klingert M Mentzel HT Rzanny R et al (2004) Dyslexia

the possible benefit of multimodal int egration of fMRI- and EEG-data Journal ofNeural TranslI1ission 111 951-69

Habib M (2000) The neurological basis of developmental dyslexia an overview and working

hypothe~is Braitl 1232373-99

Hallgren B (950) Specific dyslexia (congenital word-blindness) a clinical and genetic study Acta Psychiatrica mid Ncwmiddotology Supplemellt 65 1-2R7

Hari R amp RenvaIl H (2001) Impaired processing of rapid stimulus sequences in dyslexia Trends in Cogn itive Sciellce 5 525-32

Hari R Remall H amp Tanskanen T (2001) Left minineglect in dyslexic adults Brain 124 1373- 80

Harm MW amp Seidenberg MS (1999) Phonology reading acquisition and dyslexia insights from

connectionist models Ps-ychological Review 106491-528

Hawelb S amp Wimmer H (2005) Impaired visual processing of multi-element arrays is associated

with increased number of eye movements in dyslexic reading Visiol1 Research 45855-63

Hawe1ka S Huber c amp Vimmer H (2006) Impaired visual processing oflette r and digit strings in

adult dyslexic readers Visiol1 Research 46 718-23

Hoeft F Hernandez A McMillon G Taylor-Hill H Martindale JL Meye A cl al (2006)

Neural basis of dyslexia a comparison between dyslexic and nondyslcxic children eqllated for

reading ability JOllrnal ofNeuroscience 26 10700-8

Jones MW Branigan HP amp Kelly M L (2008) Visllal deficits in developmental dyslex ia

rela tionships between non -lingllistic visual tasks and their contribution to components of reading

Dyslexia 14 95-115

Kevan A amp Pammer K (2008 ) Visual deficits in pre-readears at familial risk for dyslcxia Visioll Research 48 2835-9

Kevan A amp Pammer K (2009) Predicting early reading skills from pre-reading measures of dorsal

stream functioning NeulOps)chologia 47 3174--8 J

p

Rm

RC

Ro

Ruf

R Ui

Sh

visual

local

chlight

nee

f3-507

d ing

fi

la

II

o

n

SPATIAL ATTENTION DISORDERS IN DEVELOPMENTAL DYSLEXIA I 135

Kinsey K Rormiddotc M Hans n P Richardson A amp Stein J (2004) t-lagnocdlular mediated

visual-spatlal attention and reading ability Nellroreport 15 2215- 18

Ladavas E Umilta C amp Mapclli D (1997) Lexical and semantic processing in the absence of word

reading Evidence from neglect dyslCoxia Ncuropsychologia 35 1075-85

Lallier M Tainturier M J Dering R Donnadieu S Valdois S Thierry G (2010) Behavioral and

ERP evid ence for amodaJ sluggish attentional shifting in developmental dyslexia Nellropsyrhologia 48 4 125- 35

Livingstone MS Rosen GD D rislane FW amp Galaburda AM (1991) Physiological and

anatomical evidence fo r a magnocellular defect in developmental dyslexia Proceedillgs of the National Academy o(Scicnccs of United States ofA merica 88 7943-7

tvlartelli M Di FiLippo G Spinelli D amp Zoccolotti P (2009) Crowding reading and developmental

dyslexia jOllrnal of Vision 9 1- 18

McCandliss BD Cohen L amp Dehaen e S (2003) The visual word form area expertise for reading in

the fusiform gyrus Trellds ill Cogl1itive Science 7 293-9

Menghini D Finzi A Benassi M Bolzani R Facoetti A Giovagnoli 5 et al (2010) Different

underlying neurocognitive deficits in developlilental dyslexia a comparative study

Neuropsyclzolugia 48 863- 72

Montani V Facoetti A amp Zorzi M (2010) Crowding effect in lexical and sublexical recognition

Perception 39 148

Pam m er K Lavis R Hansen P amp Cornelissen PL (2084) Symbol-string sensitivity and childrens

reading Brain 6- Langwlge 89 601-10

Peili DG (2008) Crowding A cortical constraint on object recognition Current Opiniol1 in

Neurobiology 18445-51

Pennington BmiddotF (2006) From single to multiple deticit models of developmental disorders Cognition 101385-413

Pemet e Anderssn J Paulesu E amp D emonet JF (2009) When ail hypotheses are right a multifocal

accounf of dyslexia J-hol1al1 Bmil1 A1appil1g 30 2278-92

Perry e Ziegler Je amp Zorzi M (2007) N ested incremental modehng in th e development of

computational theories The CDP+ model of reading aloud Psychological Review 114273- 315

Plaza M amp (ohen E (2006) The contribution of phonological awareness and visual altention in early

reading and sp_c1ling Dyslexia 1367-76

Potter Me Staub A amp OConnor DH (2002) Th e time course of CQmpetition for attention Attention

is initially labile journal ofExperimelltal Psychology Human Pcrception and Performance 28 1149-62

Pugh KR Mend W E Jenner AR Kats L Prost Sj Lee JR et al (2000) Functional

neuroimaging studies of reading and reading diGability (developmental dyslexia) Mental Retardation ami Developmental Disabilities Research Rcvh1vs 6 207-13

Ramus F (2003) Developmental dyslexia specific phonological deficit or general sensorimotor

dysfun ction Current Opilion in Neurobiology 13212-18

Renvall H amp Hari R (2002) Auditory cortical responses to speech-like stimuli in dyslexic adults

joumal ofCogl1itive Neuroscience 14757- 68

Reynolds JH amp Heeger DJ (2009) The normalization model of attention Neurol 61168-85

Roach NW amp Hogben JH (2007) Impaired filtering of behaviourally irrdevant visual information

in dyslexia Bmir 130 771- 85

Ruffino tv1 Trussardi AN Gori S Finzi A Giovagnoli S Menghini D et al (2010a) Attcntional

engagem ent deficits in dyslexic children NellropsyciJologia 48 3793-801

Ruffino M Gori 5 Franceschini S amp Facoett i A (2010h) Developmental dyslexia Perceptual noise

exclusion deficit or spatial attention dysfunction Perccption 39 80

Shamma SA amp Micheyl e (2010) Behind the scenes of auditory perception Currcnt Opi1lio1l Neurobiology 20 361-6

1135 SPATIAL ATTENTION DISORDERS IN DEVELOPMENTAL DYSLEXIA

Kinsey K Rose M Hansen PRichardson A amp Stein J (2004) Magnocellular mediated

visual-spa tial attention and reading ability Nelroreport 152215-18

Ladavas E Umilta c amp Mapelli D (1997) Lexical and semantic processing in the absence of word

reading Evidence from neglect dyslexia Neu7Opsyc1iOlogia 351075-85

Lallier M Iainturier iVJ Dering BDonnadieu 5 Yaldois 5 Thierry G (2010) Behavioral and

ERP evidence for amodal sluggish attentional shifting in developmental dyslexia NeufOpsychologia 484125-35

Livingstone MS Rosen GD Drisbne FW amp Gabburda AJv (1991) Physiological and

anatomical evid_ence for a l11agnocellular defect in developmental dyslexia Proceedillgs of the Natiollal Academy ofSciences o(United States ofAmerica 88 7943-7

Martelli rv Di Filippo G Spinelli D amp Zoccolotti P (2009) Crowding reading and developmental

dyslexia journal ofVision 9 l-J 8

McCandliss BD Cohen L amp Dehaene S (2003) The visual word form area expertise for reading in

the fusifOTl11 gyrus Trellds ill Cognitive Sciellce 7293-9

venghini D Finzi A Benassi N Bolzani R Facoetti A Giovagnoli S et a (2010) Different

underlying neurocognitive deficits in developmental dyslexia a comparative study

Nellropsychologia 48 863-72

Montani Y Facoetti A amp Zorzi M (2010) Crowding effect in lexical and sublcxical recognition

Perception 39 148

Pammer K Lavis R Hansen P amp Cornelissen PL (2004) Symbol-string sensilivity and childrens

reading Brain amp Language 89 601-10

Pelli DG (2008) Crowding A cm-tical constraint on object recognition Currcnt Opinion in Neurobiology 18445-51

Pennington BF (2006) From single to mUltiple deficit models of developmental disorders Cognition 101385-413

Pernet c Anderssn J Paulesu E amp Demonet JF (2009) Vhen all hy-potheses are right a m ultifocal

accounf of dyslexia HIman Brain iI-lopping 30 2278-92

Perry c Ziegler Je amp Zorzi M (2007) Ncsted incremental modding in the development of

computational theories The CD P+ model ofreading aloud Psychological Review 114273-315

Plaza M amp Cohen E (2006) The contribution of phonological awareness and visual attention in early

reading and spelling Dyslexia 1367-76

Potter Me Staub A amp OConnor DH (2002) The time course of competition for attention Attention

is initially labile journal ofExperimenlil1 PsycilOlogy HlImal1 Perceptiollllnd Performame 28 1149-62

Pugh KR Mend WE lenner AR Kats L Frost SJ Lee JR et al (2000) Functional

neuroimaging studies of reading and reading disability (developmental dyslexia) Mental Retardation and Developmental Disabilities Research Reviews 6 207-13

Ramus F (2003) Developmental dyslexia specific phonological deficit or general sensorimotor

dysfunction Current Opiniol1 in Neurobiology 13212-18

Renvall H amp Hari R (2002) Auditory cortical responses to speech-like stimuli in dyslexic adults

jOtlrnal afCognitive Neuroscience 14757-68

Reynolds JH amp H eeger DJ- (2009) The normalization model of attention Neuroll 61 168-85

Roach NW amp Hogben JH (2007) Impaired filtering of behaviourally irrelevant visual information

in dyslexia Brain l3U 771-85

Ruffino M Trussardi AN Gori S Finzi A Ciovagnoli 5 Menghini D et al (2010a) Attentional

engagement deficits in dyslexic children NeliropsycilOlogia 483793-801

Ruffino M Gori 5 FranceschiniS amp Facoetti A (2010b) Developmental dyslexia Perceptual noise

excl usion deficit or spatial attention dysfunction Perceptiol1 39 80

Sharn ma SA amp Micheyl C (2010) Behind the scenes of auditory perception Currellt Opinion Neu robiology 20 361-6

136 I VISUAL ASPECTS OF DYSLEXIA

Share DL (1995) Phonological recoding and self- teaching Sine qua non of reading acquisition

Cognition 55151-218

Shaywitz SE amp Sha)~tz BA (2005) Dyslexia specific reading disability Biological Psychiatry 571301-9

Sieroff E Pollatsek A amp Posner M (1988) Recognition of visual letter strings following injury to the

posterior visual spatial attention system Cognitive Neuropsychology 5 427-49

Sperling AJ Lu ZL Manis FR amp Seidenberg MS (2005) Deficits in perceptual noise exclusion in

developmental dyslexia Nature Neuroscience 8 862-3

Stein J amp Walsh V (1997) To see but 110t to read The magnocellular theory of dyslexia Trends in NeuroSciencc 20 147-52

Stevens C Fanning J Coch D Sanders L amp Meville H (2008) Neural mechanisms of selective

auditory attcntional enhanced by computerized training ElectrophySiological evidence from

language-impaired and typicaUy developing children Brain ResClIrch 1205 55-69

Stevens C Sanders L amp Neville H (2006) NeurophysiologicaJ evidence for selective auditory

attention deficits in children mth specific language impairment Brain Research 111 143-52

Tallal P (2004) Improving language and literacy is a matter of time Nature Review Neuroscience 5721-8

Thomas CJ (1905) Congenital word blindness and its treatmcnt Ophthalmoscope 3 380--5

Turkeltaub PE Gareau L Flowers DL Zeffiro TA amp Eden GF (2003) Development of neural

mechanisms for reading Natnc Neuroscience 6 767-73

VaJdois S Bosse ML amp Tainturier MJ (2004) The cognitive deficits responsible for developmental

dyslexia review of evidence for a selective visual attentional disorder Dyslexia 10339-63

Valdois S Carbonnel SJuphard A Baciu M Ans B Peyrin C ct al (2006) Polysyllabic

pseudo-word processing in reading and lexical decision Converging evidencefrom behavioral data

connectionist simulations and functional MRI Bmin Research 1085149- 62

Van der Lubbe RH amp Keuss PJ (200 1) Focused attention reduces the effect oflJtcral interference in

multi-element arrays Psychological Research 65107-18

Vellutino FR Fletcher JM Snowling MJ amp Scanlon DM (2004) Specific reading disability

(dyslexia) What have wc learned in tiLe past four decades )ollll1al ofChild Psychology and Psychiatty 45 2-40

Vidyasagar TR amp Pammer K (2010) Dyslexia a deficit in visuo-spatial attention not in

phonological processing Trends il Cognitive Science 1457-63

Whitney C amp Cornelissen P (2005) Letter position encoding and dyslexia loumal ofResearch ill Rcadirg 28 274-301

Wright BA Bowen RW amp Zecker SG (2000) Nonlinguistic perceptual deficits associated mth

reading and language disorders CIlTent Opinion ill Neurobiology 10482-6

Ziegler JC amp Goswami U (2005) Reading acquisition developmental dyslexia and skilled reading

across languages A psycholinguistic grain size theory Psychological Bulletin 1313-29

Zieglb Je Perry C Wyatt AM Ladner D t Schulte-Korne G (2003) Developmental dyslexia in

different languages Language-specific or universal lotlnal Ofpound1)crimental Child Psychology 86169-93

Ziegkr JC Pech-Georgel C George F Alario Fx Lorenzi C (2005) Deficits in speech perception

predict language learning impairment Proceedings of the National Academy ofScicnces ofthe United States ofAmerica 2714110-15

Ziegler JC Pech-Georgel C George F amp Lorenzi C (2009) Speech perception in noise deficits in

dyslexia Developmental Scicnce 12 732-45

Zorzi M (2005) Computational models of reading In G Houghton (Ed) Conncctionist modcls ill cogshynitive pSychology pp 403~H London Psychology Press

Zorzi M Barbiero C Facoetti A Lonciari I Carroni M Montico M Bravar L George F Pechshy

George C amp Ziegler J (2012) Extra-Large Letter Spacing Improves Reading in Dyslexia

Proceedings of the National Academy ofSciences of the United States ofAmcrica in press

150 1m the pag

tem ha

neural

started

cortica

ters an norma

that th

to be reo

ing on

readiuc

wOTkin

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Exist umque

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scienli

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et aI

has al COTlH

Page 5: Visual Aspect Of dyslexia Chapter Facoetti

visual

local

chlight

nee

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fi

la

II

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n

SPATIAL ATTENTION DISORDERS IN DEVELOPMENTAL DYSLEXIA I 135

Kinsey K Rormiddotc M Hans n P Richardson A amp Stein J (2004) t-lagnocdlular mediated

visual-spatlal attention and reading ability Nellroreport 15 2215- 18

Ladavas E Umilta C amp Mapclli D (1997) Lexical and semantic processing in the absence of word

reading Evidence from neglect dyslCoxia Ncuropsychologia 35 1075-85

Lallier M Tainturier M J Dering R Donnadieu S Valdois S Thierry G (2010) Behavioral and

ERP evid ence for amodaJ sluggish attentional shifting in developmental dyslexia Nellropsyrhologia 48 4 125- 35

Livingstone MS Rosen GD D rislane FW amp Galaburda AM (1991) Physiological and

anatomical evidence fo r a magnocellular defect in developmental dyslexia Proceedillgs of the National Academy o(Scicnccs of United States ofA merica 88 7943-7

tvlartelli M Di FiLippo G Spinelli D amp Zoccolotti P (2009) Crowding reading and developmental

dyslexia jOllrnal of Vision 9 1- 18

McCandliss BD Cohen L amp Dehaen e S (2003) The visual word form area expertise for reading in

the fusiform gyrus Trellds ill Cogl1itive Science 7 293-9

Menghini D Finzi A Benassi M Bolzani R Facoetti A Giovagnoli 5 et al (2010) Different

underlying neurocognitive deficits in developlilental dyslexia a comparative study

Neuropsyclzolugia 48 863- 72

Montani V Facoetti A amp Zorzi M (2010) Crowding effect in lexical and sublexical recognition

Perception 39 148

Pam m er K Lavis R Hansen P amp Cornelissen PL (2084) Symbol-string sensitivity and childrens

reading Brain 6- Langwlge 89 601-10

Peili DG (2008) Crowding A cortical constraint on object recognition Current Opiniol1 in

Neurobiology 18445-51

Pennington BmiddotF (2006) From single to multiple deticit models of developmental disorders Cognition 101385-413

Pemet e Anderssn J Paulesu E amp D emonet JF (2009) When ail hypotheses are right a multifocal

accounf of dyslexia J-hol1al1 Bmil1 A1appil1g 30 2278-92

Perry e Ziegler Je amp Zorzi M (2007) N ested incremental modehng in th e development of

computational theories The CDP+ model of reading aloud Psychological Review 114273- 315

Plaza M amp (ohen E (2006) The contribution of phonological awareness and visual altention in early

reading and sp_c1ling Dyslexia 1367-76

Potter Me Staub A amp OConnor DH (2002) Th e time course of CQmpetition for attention Attention

is initially labile journal ofExperimelltal Psychology Human Pcrception and Performance 28 1149-62

Pugh KR Mend W E Jenner AR Kats L Prost Sj Lee JR et al (2000) Functional

neuroimaging studies of reading and reading diGability (developmental dyslexia) Mental Retardation ami Developmental Disabilities Research Rcvh1vs 6 207-13

Ramus F (2003) Developmental dyslexia specific phonological deficit or general sensorimotor

dysfun ction Current Opilion in Neurobiology 13212-18

Renvall H amp Hari R (2002) Auditory cortical responses to speech-like stimuli in dyslexic adults

joumal ofCogl1itive Neuroscience 14757- 68

Reynolds JH amp Heeger DJ (2009) The normalization model of attention Neurol 61168-85

Roach NW amp Hogben JH (2007) Impaired filtering of behaviourally irrdevant visual information

in dyslexia Bmir 130 771- 85

Ruffino tv1 Trussardi AN Gori S Finzi A Giovagnoli S Menghini D et al (2010a) Attcntional

engagem ent deficits in dyslexic children NellropsyciJologia 48 3793-801

Ruffino M Gori 5 Franceschini S amp Facoett i A (2010h) Developmental dyslexia Perceptual noise

exclusion deficit or spatial attention dysfunction Perccption 39 80

Shamma SA amp Micheyl e (2010) Behind the scenes of auditory perception Currcnt Opi1lio1l Neurobiology 20 361-6

1135 SPATIAL ATTENTION DISORDERS IN DEVELOPMENTAL DYSLEXIA

Kinsey K Rose M Hansen PRichardson A amp Stein J (2004) Magnocellular mediated

visual-spa tial attention and reading ability Nelroreport 152215-18

Ladavas E Umilta c amp Mapelli D (1997) Lexical and semantic processing in the absence of word

reading Evidence from neglect dyslexia Neu7Opsyc1iOlogia 351075-85

Lallier M Iainturier iVJ Dering BDonnadieu 5 Yaldois 5 Thierry G (2010) Behavioral and

ERP evidence for amodal sluggish attentional shifting in developmental dyslexia NeufOpsychologia 484125-35

Livingstone MS Rosen GD Drisbne FW amp Gabburda AJv (1991) Physiological and

anatomical evid_ence for a l11agnocellular defect in developmental dyslexia Proceedillgs of the Natiollal Academy ofSciences o(United States ofAmerica 88 7943-7

Martelli rv Di Filippo G Spinelli D amp Zoccolotti P (2009) Crowding reading and developmental

dyslexia journal ofVision 9 l-J 8

McCandliss BD Cohen L amp Dehaene S (2003) The visual word form area expertise for reading in

the fusifOTl11 gyrus Trellds ill Cognitive Sciellce 7293-9

venghini D Finzi A Benassi N Bolzani R Facoetti A Giovagnoli S et a (2010) Different

underlying neurocognitive deficits in developmental dyslexia a comparative study

Nellropsychologia 48 863-72

Montani Y Facoetti A amp Zorzi M (2010) Crowding effect in lexical and sublcxical recognition

Perception 39 148

Pammer K Lavis R Hansen P amp Cornelissen PL (2004) Symbol-string sensilivity and childrens

reading Brain amp Language 89 601-10

Pelli DG (2008) Crowding A cm-tical constraint on object recognition Currcnt Opinion in Neurobiology 18445-51

Pennington BF (2006) From single to mUltiple deficit models of developmental disorders Cognition 101385-413

Pernet c Anderssn J Paulesu E amp Demonet JF (2009) Vhen all hy-potheses are right a m ultifocal

accounf of dyslexia HIman Brain iI-lopping 30 2278-92

Perry c Ziegler Je amp Zorzi M (2007) Ncsted incremental modding in the development of

computational theories The CD P+ model ofreading aloud Psychological Review 114273-315

Plaza M amp Cohen E (2006) The contribution of phonological awareness and visual attention in early

reading and spelling Dyslexia 1367-76

Potter Me Staub A amp OConnor DH (2002) The time course of competition for attention Attention

is initially labile journal ofExperimenlil1 PsycilOlogy HlImal1 Perceptiollllnd Performame 28 1149-62

Pugh KR Mend WE lenner AR Kats L Frost SJ Lee JR et al (2000) Functional

neuroimaging studies of reading and reading disability (developmental dyslexia) Mental Retardation and Developmental Disabilities Research Reviews 6 207-13

Ramus F (2003) Developmental dyslexia specific phonological deficit or general sensorimotor

dysfunction Current Opiniol1 in Neurobiology 13212-18

Renvall H amp Hari R (2002) Auditory cortical responses to speech-like stimuli in dyslexic adults

jOtlrnal afCognitive Neuroscience 14757-68

Reynolds JH amp H eeger DJ- (2009) The normalization model of attention Neuroll 61 168-85

Roach NW amp Hogben JH (2007) Impaired filtering of behaviourally irrelevant visual information

in dyslexia Brain l3U 771-85

Ruffino M Trussardi AN Gori S Finzi A Ciovagnoli 5 Menghini D et al (2010a) Attentional

engagement deficits in dyslexic children NeliropsycilOlogia 483793-801

Ruffino M Gori 5 FranceschiniS amp Facoetti A (2010b) Developmental dyslexia Perceptual noise

excl usion deficit or spatial attention dysfunction Perceptiol1 39 80

Sharn ma SA amp Micheyl C (2010) Behind the scenes of auditory perception Currellt Opinion Neu robiology 20 361-6

136 I VISUAL ASPECTS OF DYSLEXIA

Share DL (1995) Phonological recoding and self- teaching Sine qua non of reading acquisition

Cognition 55151-218

Shaywitz SE amp Sha)~tz BA (2005) Dyslexia specific reading disability Biological Psychiatry 571301-9

Sieroff E Pollatsek A amp Posner M (1988) Recognition of visual letter strings following injury to the

posterior visual spatial attention system Cognitive Neuropsychology 5 427-49

Sperling AJ Lu ZL Manis FR amp Seidenberg MS (2005) Deficits in perceptual noise exclusion in

developmental dyslexia Nature Neuroscience 8 862-3

Stein J amp Walsh V (1997) To see but 110t to read The magnocellular theory of dyslexia Trends in NeuroSciencc 20 147-52

Stevens C Fanning J Coch D Sanders L amp Meville H (2008) Neural mechanisms of selective

auditory attcntional enhanced by computerized training ElectrophySiological evidence from

language-impaired and typicaUy developing children Brain ResClIrch 1205 55-69

Stevens C Sanders L amp Neville H (2006) NeurophysiologicaJ evidence for selective auditory

attention deficits in children mth specific language impairment Brain Research 111 143-52

Tallal P (2004) Improving language and literacy is a matter of time Nature Review Neuroscience 5721-8

Thomas CJ (1905) Congenital word blindness and its treatmcnt Ophthalmoscope 3 380--5

Turkeltaub PE Gareau L Flowers DL Zeffiro TA amp Eden GF (2003) Development of neural

mechanisms for reading Natnc Neuroscience 6 767-73

VaJdois S Bosse ML amp Tainturier MJ (2004) The cognitive deficits responsible for developmental

dyslexia review of evidence for a selective visual attentional disorder Dyslexia 10339-63

Valdois S Carbonnel SJuphard A Baciu M Ans B Peyrin C ct al (2006) Polysyllabic

pseudo-word processing in reading and lexical decision Converging evidencefrom behavioral data

connectionist simulations and functional MRI Bmin Research 1085149- 62

Van der Lubbe RH amp Keuss PJ (200 1) Focused attention reduces the effect oflJtcral interference in

multi-element arrays Psychological Research 65107-18

Vellutino FR Fletcher JM Snowling MJ amp Scanlon DM (2004) Specific reading disability

(dyslexia) What have wc learned in tiLe past four decades )ollll1al ofChild Psychology and Psychiatty 45 2-40

Vidyasagar TR amp Pammer K (2010) Dyslexia a deficit in visuo-spatial attention not in

phonological processing Trends il Cognitive Science 1457-63

Whitney C amp Cornelissen P (2005) Letter position encoding and dyslexia loumal ofResearch ill Rcadirg 28 274-301

Wright BA Bowen RW amp Zecker SG (2000) Nonlinguistic perceptual deficits associated mth

reading and language disorders CIlTent Opinion ill Neurobiology 10482-6

Ziegler JC amp Goswami U (2005) Reading acquisition developmental dyslexia and skilled reading

across languages A psycholinguistic grain size theory Psychological Bulletin 1313-29

Zieglb Je Perry C Wyatt AM Ladner D t Schulte-Korne G (2003) Developmental dyslexia in

different languages Language-specific or universal lotlnal Ofpound1)crimental Child Psychology 86169-93

Ziegkr JC Pech-Georgel C George F Alario Fx Lorenzi C (2005) Deficits in speech perception

predict language learning impairment Proceedings of the National Academy ofScicnces ofthe United States ofAmerica 2714110-15

Ziegler JC Pech-Georgel C George F amp Lorenzi C (2009) Speech perception in noise deficits in

dyslexia Developmental Scicnce 12 732-45

Zorzi M (2005) Computational models of reading In G Houghton (Ed) Conncctionist modcls ill cogshynitive pSychology pp 403~H London Psychology Press

Zorzi M Barbiero C Facoetti A Lonciari I Carroni M Montico M Bravar L George F Pechshy

George C amp Ziegler J (2012) Extra-Large Letter Spacing Improves Reading in Dyslexia

Proceedings of the National Academy ofSciences of the United States ofAmcrica in press

150 1m the pag

tem ha

neural

started

cortica

ters an norma

that th

to be reo

ing on

readiuc

wOTkin

tude of just wil

Exist umque

the GU

serioU

scienli

tiOJ1 ~

et aI

has al COTlH

Page 6: Visual Aspect Of dyslexia Chapter Facoetti

1135 SPATIAL ATTENTION DISORDERS IN DEVELOPMENTAL DYSLEXIA

Kinsey K Rose M Hansen PRichardson A amp Stein J (2004) Magnocellular mediated

visual-spa tial attention and reading ability Nelroreport 152215-18

Ladavas E Umilta c amp Mapelli D (1997) Lexical and semantic processing in the absence of word

reading Evidence from neglect dyslexia Neu7Opsyc1iOlogia 351075-85

Lallier M Iainturier iVJ Dering BDonnadieu 5 Yaldois 5 Thierry G (2010) Behavioral and

ERP evidence for amodal sluggish attentional shifting in developmental dyslexia NeufOpsychologia 484125-35

Livingstone MS Rosen GD Drisbne FW amp Gabburda AJv (1991) Physiological and

anatomical evid_ence for a l11agnocellular defect in developmental dyslexia Proceedillgs of the Natiollal Academy ofSciences o(United States ofAmerica 88 7943-7

Martelli rv Di Filippo G Spinelli D amp Zoccolotti P (2009) Crowding reading and developmental

dyslexia journal ofVision 9 l-J 8

McCandliss BD Cohen L amp Dehaene S (2003) The visual word form area expertise for reading in

the fusifOTl11 gyrus Trellds ill Cognitive Sciellce 7293-9

venghini D Finzi A Benassi N Bolzani R Facoetti A Giovagnoli S et a (2010) Different

underlying neurocognitive deficits in developmental dyslexia a comparative study

Nellropsychologia 48 863-72

Montani Y Facoetti A amp Zorzi M (2010) Crowding effect in lexical and sublcxical recognition

Perception 39 148

Pammer K Lavis R Hansen P amp Cornelissen PL (2004) Symbol-string sensilivity and childrens

reading Brain amp Language 89 601-10

Pelli DG (2008) Crowding A cm-tical constraint on object recognition Currcnt Opinion in Neurobiology 18445-51

Pennington BF (2006) From single to mUltiple deficit models of developmental disorders Cognition 101385-413

Pernet c Anderssn J Paulesu E amp Demonet JF (2009) Vhen all hy-potheses are right a m ultifocal

accounf of dyslexia HIman Brain iI-lopping 30 2278-92

Perry c Ziegler Je amp Zorzi M (2007) Ncsted incremental modding in the development of

computational theories The CD P+ model ofreading aloud Psychological Review 114273-315

Plaza M amp Cohen E (2006) The contribution of phonological awareness and visual attention in early

reading and spelling Dyslexia 1367-76

Potter Me Staub A amp OConnor DH (2002) The time course of competition for attention Attention

is initially labile journal ofExperimenlil1 PsycilOlogy HlImal1 Perceptiollllnd Performame 28 1149-62

Pugh KR Mend WE lenner AR Kats L Frost SJ Lee JR et al (2000) Functional

neuroimaging studies of reading and reading disability (developmental dyslexia) Mental Retardation and Developmental Disabilities Research Reviews 6 207-13

Ramus F (2003) Developmental dyslexia specific phonological deficit or general sensorimotor

dysfunction Current Opiniol1 in Neurobiology 13212-18

Renvall H amp Hari R (2002) Auditory cortical responses to speech-like stimuli in dyslexic adults

jOtlrnal afCognitive Neuroscience 14757-68

Reynolds JH amp H eeger DJ- (2009) The normalization model of attention Neuroll 61 168-85

Roach NW amp Hogben JH (2007) Impaired filtering of behaviourally irrelevant visual information

in dyslexia Brain l3U 771-85

Ruffino M Trussardi AN Gori S Finzi A Ciovagnoli 5 Menghini D et al (2010a) Attentional

engagement deficits in dyslexic children NeliropsycilOlogia 483793-801

Ruffino M Gori 5 FranceschiniS amp Facoetti A (2010b) Developmental dyslexia Perceptual noise

excl usion deficit or spatial attention dysfunction Perceptiol1 39 80

Sharn ma SA amp Micheyl C (2010) Behind the scenes of auditory perception Currellt Opinion Neu robiology 20 361-6

136 I VISUAL ASPECTS OF DYSLEXIA

Share DL (1995) Phonological recoding and self- teaching Sine qua non of reading acquisition

Cognition 55151-218

Shaywitz SE amp Sha)~tz BA (2005) Dyslexia specific reading disability Biological Psychiatry 571301-9

Sieroff E Pollatsek A amp Posner M (1988) Recognition of visual letter strings following injury to the

posterior visual spatial attention system Cognitive Neuropsychology 5 427-49

Sperling AJ Lu ZL Manis FR amp Seidenberg MS (2005) Deficits in perceptual noise exclusion in

developmental dyslexia Nature Neuroscience 8 862-3

Stein J amp Walsh V (1997) To see but 110t to read The magnocellular theory of dyslexia Trends in NeuroSciencc 20 147-52

Stevens C Fanning J Coch D Sanders L amp Meville H (2008) Neural mechanisms of selective

auditory attcntional enhanced by computerized training ElectrophySiological evidence from

language-impaired and typicaUy developing children Brain ResClIrch 1205 55-69

Stevens C Sanders L amp Neville H (2006) NeurophysiologicaJ evidence for selective auditory

attention deficits in children mth specific language impairment Brain Research 111 143-52

Tallal P (2004) Improving language and literacy is a matter of time Nature Review Neuroscience 5721-8

Thomas CJ (1905) Congenital word blindness and its treatmcnt Ophthalmoscope 3 380--5

Turkeltaub PE Gareau L Flowers DL Zeffiro TA amp Eden GF (2003) Development of neural

mechanisms for reading Natnc Neuroscience 6 767-73

VaJdois S Bosse ML amp Tainturier MJ (2004) The cognitive deficits responsible for developmental

dyslexia review of evidence for a selective visual attentional disorder Dyslexia 10339-63

Valdois S Carbonnel SJuphard A Baciu M Ans B Peyrin C ct al (2006) Polysyllabic

pseudo-word processing in reading and lexical decision Converging evidencefrom behavioral data

connectionist simulations and functional MRI Bmin Research 1085149- 62

Van der Lubbe RH amp Keuss PJ (200 1) Focused attention reduces the effect oflJtcral interference in

multi-element arrays Psychological Research 65107-18

Vellutino FR Fletcher JM Snowling MJ amp Scanlon DM (2004) Specific reading disability

(dyslexia) What have wc learned in tiLe past four decades )ollll1al ofChild Psychology and Psychiatty 45 2-40

Vidyasagar TR amp Pammer K (2010) Dyslexia a deficit in visuo-spatial attention not in

phonological processing Trends il Cognitive Science 1457-63

Whitney C amp Cornelissen P (2005) Letter position encoding and dyslexia loumal ofResearch ill Rcadirg 28 274-301

Wright BA Bowen RW amp Zecker SG (2000) Nonlinguistic perceptual deficits associated mth

reading and language disorders CIlTent Opinion ill Neurobiology 10482-6

Ziegler JC amp Goswami U (2005) Reading acquisition developmental dyslexia and skilled reading

across languages A psycholinguistic grain size theory Psychological Bulletin 1313-29

Zieglb Je Perry C Wyatt AM Ladner D t Schulte-Korne G (2003) Developmental dyslexia in

different languages Language-specific or universal lotlnal Ofpound1)crimental Child Psychology 86169-93

Ziegkr JC Pech-Georgel C George F Alario Fx Lorenzi C (2005) Deficits in speech perception

predict language learning impairment Proceedings of the National Academy ofScicnces ofthe United States ofAmerica 2714110-15

Ziegler JC Pech-Georgel C George F amp Lorenzi C (2009) Speech perception in noise deficits in

dyslexia Developmental Scicnce 12 732-45

Zorzi M (2005) Computational models of reading In G Houghton (Ed) Conncctionist modcls ill cogshynitive pSychology pp 403~H London Psychology Press

Zorzi M Barbiero C Facoetti A Lonciari I Carroni M Montico M Bravar L George F Pechshy

George C amp Ziegler J (2012) Extra-Large Letter Spacing Improves Reading in Dyslexia

Proceedings of the National Academy ofSciences of the United States ofAmcrica in press

150 1m the pag

tem ha

neural

started

cortica

ters an norma

that th

to be reo

ing on

readiuc

wOTkin

tude of just wil

Exist umque

the GU

serioU

scienli

tiOJ1 ~

et aI

has al COTlH

Page 7: Visual Aspect Of dyslexia Chapter Facoetti

136 I VISUAL ASPECTS OF DYSLEXIA

Share DL (1995) Phonological recoding and self- teaching Sine qua non of reading acquisition

Cognition 55151-218

Shaywitz SE amp Sha)~tz BA (2005) Dyslexia specific reading disability Biological Psychiatry 571301-9

Sieroff E Pollatsek A amp Posner M (1988) Recognition of visual letter strings following injury to the

posterior visual spatial attention system Cognitive Neuropsychology 5 427-49

Sperling AJ Lu ZL Manis FR amp Seidenberg MS (2005) Deficits in perceptual noise exclusion in

developmental dyslexia Nature Neuroscience 8 862-3

Stein J amp Walsh V (1997) To see but 110t to read The magnocellular theory of dyslexia Trends in NeuroSciencc 20 147-52

Stevens C Fanning J Coch D Sanders L amp Meville H (2008) Neural mechanisms of selective

auditory attcntional enhanced by computerized training ElectrophySiological evidence from

language-impaired and typicaUy developing children Brain ResClIrch 1205 55-69

Stevens C Sanders L amp Neville H (2006) NeurophysiologicaJ evidence for selective auditory

attention deficits in children mth specific language impairment Brain Research 111 143-52

Tallal P (2004) Improving language and literacy is a matter of time Nature Review Neuroscience 5721-8

Thomas CJ (1905) Congenital word blindness and its treatmcnt Ophthalmoscope 3 380--5

Turkeltaub PE Gareau L Flowers DL Zeffiro TA amp Eden GF (2003) Development of neural

mechanisms for reading Natnc Neuroscience 6 767-73

VaJdois S Bosse ML amp Tainturier MJ (2004) The cognitive deficits responsible for developmental

dyslexia review of evidence for a selective visual attentional disorder Dyslexia 10339-63

Valdois S Carbonnel SJuphard A Baciu M Ans B Peyrin C ct al (2006) Polysyllabic

pseudo-word processing in reading and lexical decision Converging evidencefrom behavioral data

connectionist simulations and functional MRI Bmin Research 1085149- 62

Van der Lubbe RH amp Keuss PJ (200 1) Focused attention reduces the effect oflJtcral interference in

multi-element arrays Psychological Research 65107-18

Vellutino FR Fletcher JM Snowling MJ amp Scanlon DM (2004) Specific reading disability

(dyslexia) What have wc learned in tiLe past four decades )ollll1al ofChild Psychology and Psychiatty 45 2-40

Vidyasagar TR amp Pammer K (2010) Dyslexia a deficit in visuo-spatial attention not in

phonological processing Trends il Cognitive Science 1457-63

Whitney C amp Cornelissen P (2005) Letter position encoding and dyslexia loumal ofResearch ill Rcadirg 28 274-301

Wright BA Bowen RW amp Zecker SG (2000) Nonlinguistic perceptual deficits associated mth

reading and language disorders CIlTent Opinion ill Neurobiology 10482-6

Ziegler JC amp Goswami U (2005) Reading acquisition developmental dyslexia and skilled reading

across languages A psycholinguistic grain size theory Psychological Bulletin 1313-29

Zieglb Je Perry C Wyatt AM Ladner D t Schulte-Korne G (2003) Developmental dyslexia in

different languages Language-specific or universal lotlnal Ofpound1)crimental Child Psychology 86169-93

Ziegkr JC Pech-Georgel C George F Alario Fx Lorenzi C (2005) Deficits in speech perception

predict language learning impairment Proceedings of the National Academy ofScicnces ofthe United States ofAmerica 2714110-15

Ziegler JC Pech-Georgel C George F amp Lorenzi C (2009) Speech perception in noise deficits in

dyslexia Developmental Scicnce 12 732-45

Zorzi M (2005) Computational models of reading In G Houghton (Ed) Conncctionist modcls ill cogshynitive pSychology pp 403~H London Psychology Press

Zorzi M Barbiero C Facoetti A Lonciari I Carroni M Montico M Bravar L George F Pechshy

George C amp Ziegler J (2012) Extra-Large Letter Spacing Improves Reading in Dyslexia

Proceedings of the National Academy ofSciences of the United States ofAmcrica in press

150 1m the pag

tem ha

neural

started

cortica

ters an norma

that th

to be reo

ing on

readiuc

wOTkin

tude of just wil

Exist umque

the GU

serioU

scienli

tiOJ1 ~

et aI

has al COTlH