Document Detail

The effect of biomechanical properties of motion on infants' perception of goal-directed grasping actions.
MedLine Citation:
PMID:  25247632     Owner:  NLM     Status:  Publisher    
From a very young age, infants perceive others' actions as goal directed. Yet, the processes underlying this competence are still debated. In this study, we investigated whether (a) 4- and 6-month-old infants and adults discriminate the biomechanical properties of the human hand within an action context, (b) the manipulation of the biomechanics of hand movements has an impact on the ability to anticipate the goal of an action, and (c) the emergence of motor experience with grasping is related to infants' ability to discriminate the biomechanics of hand movements and to anticipate the action goal. The 6-month-olds discriminated between biomechanically possible and impossible grasps, and in some (but not all) instances they made more anticipatory gaze shifts toward the goal of the possible action. Both the 4- and 6-month-olds' processing of biomechanical properties of the hand were significantly related to their ability to anticipate the goal of a grasping action. Importantly, those 4-month-olds with higher precision grasping skills manifested faster anticipatory gazes toward the goal of the action. These findings suggest that multiple sources of information from an action scene are interdependent and that both perceptual information and motor experience with an action are relevant for on-line prediction of the final goal of the action.
Elena Geangu; Irene Senna; Emanuela Croci; Chiara Turati
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2014-9-20
Journal Detail:
Title:  Journal of experimental child psychology     Volume:  129C     ISSN:  1096-0457     ISO Abbreviation:  J Exp Child Psychol     Publication Date:  2014 Sep 
Date Detail:
Created Date:  2014-9-23     Completed Date:  -     Revised Date:  2014-9-24    
Medline Journal Info:
Nlm Unique ID:  2985128R     Medline TA:  J Exp Child Psychol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  55-67     Citation Subset:  -    
Copyright Information:
Copyright © 2014 Elsevier Inc. All rights reserved.
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