Semantic Satiation and Lexical Ambiguity Resolution
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Semantic Satiation and Lexical Ambiguity
Resolution
Mike BravermanPsyc 525
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Semantic Satiation
bear bear bear
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Semantic Satiation
Purpose?Mechanism for inhibiting useless knowledgeBackground noise
How? Neural fatigue
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Semantic Satiation
Why?What is it about the way we represent
knowledge…To understand, need to know about
Semantic networks and activationInteractive models (i.e., Cottrell, 1988)
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Semantic Networks
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Semantic Networks - Priming
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Semantic Networks, Priming, and Semantic Satiation
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Semantic networks – interactive models
Cottrell (1988)Semantic representation for each meaning of an
ambiguous word Inhibitory connections between meanings
Competing hypothesesGathering evidence via context
Deck – floor of ship, Deck – cardsPriming one meaning inhibits processing of another
(Balota & Duchek, 1991; Simpson & Kellas, 1989).
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Semantic Satiation and Lexical Ambiguity
HomographsYay!
How does satiation relate to lexical ambiguity resolution?Would satiating one meaning of a homograph
(organ) affect the ease of processing of another meaning?
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Experiment 1: DesignThree words presented: the prime, by itself, then the
homograph and the target word togetherTask – make a relatedness judgment for the
homograph-target pairConcordant, discordant, and neutral priming conditionsPriming a helpful (concordant) meaning should
decrease RT, and a misleading (discordant) meaning increase RT But these effects should be attenuated by prime
repetition
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Experiment 1: Design
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Experiment 1: Predictions
1 some many
RT on relatedness judgments (ORGAN – KIDNEY) as function of priming
DiscordantConcordantNeutral
Number of prime word presentations
RT
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Results: Experiment 1
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Results: Experiment 1
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Discussion: Experiment 1Priming
YesBut why no satiation? Author says…
Task different, more complex?Addition of misleading condition led to strategizing,
more deliberative and slower responsesPIANOAre these words related? ORGAN – KIDNEYN.
WRONG!
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Experiment 2: DesignWanted to eliminate strategizingEncouraged to respond quickly
Positive feedback really worksRT below 1,501 ms is…
Terrific!RT 1,501 – 2,000 ms is…
Good!RT above 2,999 ms is…
TOO SLOW!
No more discordant condition
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Results: Experiment 2
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Results: Experiment 2
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What have we learned?Lexical ambiguity resolution
Priming is one way that context is usedPriming repeated too often can be less effective
(but not a lot less, and only sometimes?)Strategic processes may mask semantic satiation
effects