'Change Management in European Enterprises ' International Meeting Athens, September 14, 2007
CA meeting Athens 2007
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Transcript of CA meeting Athens 2007
CA meeting Athens 2007
Raymond CuijpersEllen de BruijnHein van Schie
Roger Newman-NorlundMajken Hulstijn
Jurjen BosgaRuud Meulenbroek
Harold Bekkering
Introduction
Classical picture:Motor output
MotorProcessing
SensoryProcessing
Sensory information
Reasoning
Percept
Motor plan
Planning
Modern picture• Motor system involved in action
observation (MNS)• Perception biased by action
planning
• Already partly incorporated in architecture of UMP
Motor output
MotorProcessing
SensoryProcessing
Sensory information
Reasoning
Percept
Motor plan
Planning
Motor plan
Division of labour in WP2
Division of labour in WP2• Joint reasoning: action
observation and action planning (Hein van Schie, Roger Newman-Norlund, Raymond Cuijpers)
• Joint attention: task dependent visual processing (Astros Chatziastros)
• Joint co-ordination: coordination of body kinetics and kinematics (Jurjen Bosga, Ruud Meulenbroek, Majken Hulstijn)
• Error monitoring and learning (Ellen de Bruijn)
SensoryProc.
Sensory information
Reasoning
Motor output
MotorProc.
Planning
World knowledge,Personal prefs. E
rror m
onitoring
Err
or
mon
itorin
g
Modeling action observation and action planning
Raymond Cuijpers
Dynamics and short-term memory of goal inference
Results• Adds short-term memory• Dynamics similar to linear regime of
neural field approach (UMP)
Explore differences and similarities:• effect on behaviour?
Present model- No memory- Sensitive to noise
Improved model- Dynamic smoothing
Probability fields
Reasoning Planning
World knowledge,Personal prefs.
implementation
‘How can we improve the internal mechanism of our computational model?’
• A main advantage of goal inference is anticipation of events
• Previous studies showed that the eye leads the hand when performing and observing a well-known action
• According to our model anticipation depends on knowledge about the goal
Anticipation in action observation
‘How is goal knowledge used for anticipation during action observation?’
Observation of goals and means in joint action
Hein van Schie
Automatic interference effects of observed action goals and means on motor performance
• In uncolored trials movement preparation is faster after goal cueing (pointing) than after means cueing (grip).
• In colored trials irrelevant postures affect response preparation (congruency effects).
• The interference of irrelevant goals in means trials is stronger than the interference of irrelevant means in goal trials.
‘How does observation of action goals and action means affect movement planning’
In half of all trials subjects respond to color (left, right, full, precision), instead of the posture
Results are consistent with the hypothesized dominance of action goals in human behavior.
EEG motor resonance during observational learning of movement sequences
Preliminary results suggest that:• Individual differences in motor resonance predict
number of errors in reproduction.• Within subjects, observational learning is associated
with changes in motor resonance.• Results suggest a functional contribution of motor
resonance to observational learning of arbitrary movement sequences.
‘What is the role of motor resonance in the learning of new action-sequences via observation?
(Top) Subjects observe a sequence of six consecutive ipsi- and contralateral pointing movements of a virtual actor for reproduction
(Bottom) Mu-power distribution in four subjects
Neural correlates of action observation and action planning
Roger Newman-Norlund
Influence of Direction of Movement on Imitative and Complementary actions
Preliminary results suggest that:
– Direction of movement has no effect on initiation of Imitative actions.
– Complementary actions are initiated faster when objects move towards actor.
‘How are complementary motor programs primed/activated?’
Preliminary results suggest that:– Sharing goal knowledge leads to increases in coupling,
faster goal acquisition.
– Sharing goal knowledge leads to worse performance in other parameters (i.e. bar drops)
– Coupling evidences similar improvement independent of goal-knowledge manipulation.
Influence of Goal Knowledge on Task Performance and Coupling of Behavior
% Recurrence Speed by Goal-No_Goal
0
1
2
3
4
5
6
7
ConditionBoth Know One Know
1 2
GOAL‘How does goal knowledge affect joint action?’
Lag (ms)
%
Re
cu
rre
nc
e
Co
rre
lati
on
(R
2)
Inter- and intrapersonal co-ordination of body kinetics and kinematics
Jurjen Bosga
Inter- and Intrapersonal Coordination in Joint Action on a Balancing Board
How much predictive motor control in joint action is elicited by seeingthe co-actor?
Task•Rock the board from side to side •With imposed amplitude and frequency•With and without seeing co-actor
Balancing Board
“Seeing each other”
“Not seeing each other”Data• Being collected
Error monitoring in competitive and cooperative contexts
Ellen de Bruijn
Flexible adaptive behaviour in cooperation and competition
‘How does monitoring of own and observed errors modulate preferences?’
Preliminary results suggest that in competition:• Participants efficiently adapt their behaviour
following own errors and after other’s errors.• These findings suggest a highly flexible
adaptive motor system in joint action• Investigations of adaptive behaviour in
cooperative settings are currently ongoing.
Neural correlates of own and observed error processing in cooperation and competition
Preliminary results suggest that in cooperation:• Same areas (medial frontal cortex and insula)
are involved in the detection of own and observed errors
• Whether activation in these areas is error-specific or reward-specific is currently being analyzed (cooperation vs. competition).
‘How does context modulate error-detection processes in joint action?’
Division of labour in WP2
Division of labour in WP2• Joint reasoning: action
observation and action planning (Hein van Schie, Roger Newman-Norlund, Raymond Cuijpers)
• Joint attention: task dependent visual processing (Astros Chatziastros)
• Joint co-ordination: coordination of body kinetics and kinematics (Jurjen Bosga, Ruud Meulenbroek, Majken Hulstijn)
• Error monitoring and learning (Ellen de Bruijn)
SensoryProc.
Sensory information
Reasoning
Motor output
MotorProc.
Planning
World knowledge,Personal prefs. E
rror m
onitoring
Err
or
mon
itorin
g