Document Detail

Effect of distorted visual feedback on the sense of agency.
MedLine Citation:
PMID:  18413918     Owner:  NLM     Status:  MEDLINE    
It has been hypothesized that an internal model is involved in controlling and recognizing one's own actions (action attribution). This results from a comparison process between the predicted sensory feedback of the action and its real sensory consequences. The aim of the present study is to distinguish the respective importance of two action parameters (time and direction) on such an attribution judgment. We used a device that allows introduction of discordance between the movements actually performed and the sensory feedback displayed on a computer screen. Participants were asked to judge whether they were viewing 1) their own movements, 2) their own movements modified (spatially or temporally displaced), or 3) those of another agent (i.e, the experimenter). In fact, in all conditions they were only shown their own movements either unaltered or modified by varying amounts in space or time. Movements were only attributed to another agent when there was a high spatial discordance between participants' hand movements and sensory feedback. This study is the first to show that the direction of movements is a cardinal feature in action attribution, whereas temporal properties of movements play a less important role.
C Farrer; M Bouchereau; M Jeannerod; N Franck
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Behavioural neurology     Volume:  19     ISSN:  0953-4180     ISO Abbreviation:  Behav Neurol     Publication Date:  2008  
Date Detail:
Created Date:  2008-04-16     Completed Date:  2008-07-29     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8914585     Medline TA:  Behav Neurol     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  53-7     Citation Subset:  IM    
Centre de Neuroscience Cognitive, CNRS, Université Claude Bernard Lyon1, RSCN, 69675 Lyon, France.
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MeSH Terms
Psychomotor Performance*
Space Perception*
Time Factors
Time Perception*
User-Computer Interface*
Visual Perception*

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