Document Detail


Predictive gaze shifts elicited during observed and performed actions in 10-month-old infants and adults.
MedLine Citation:
PMID:  21722655     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
We asked whether people's actions are understood by projecting them onto one's own action programs, according to the direct matching hypothesis, and whether this mode of control functions in infants. Adults' and infants' gaze and hand movements were measured in two live situations. The task was either to move an object between two places in the visual field, or to observe the corresponding action performed by another person. When performing the action, infants and adults behaved strikingly similar. Hand and gaze movements were simultaneously initiated and gaze arrived at the goal ahead of the hand. When observing the actions, the initiation of the gaze shift was delayed relative to the observed hand movement in both infants and adults, but it still arrived at the goal ahead of the hand. For both the performance and observation of actions the proactiveness of gaze shifts was associated with saccades ahead of the velocity peak of the hand. The close similarity between adults' and infants' actions when performing the movements and the great advantage of the adults when observing them support the conclusion that one's own motor actions develop ahead of the ability to predict other people's actions.
Authors:
Kerstin Rosander; Claes von Hofsten
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-6-22
Journal Detail:
Title:  Neuropsychologia     Volume:  -     ISSN:  1873-3514     ISO Abbreviation:  -     Publication Date:  2011 Jun 
Date Detail:
Created Date:  2011-7-4     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0020713     Medline TA:  Neuropsychologia     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2011. Published by Elsevier Ltd.
Affiliation:
Department of Psychology, Box 1225, Uppsala University, S-75121 Uppsala, Sweden; Department of Psychology (EKUP), Oslo University, Boks 1072, Blindern 0316 Oslo, Norway.
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