Document Detail


Early manifestations of manual specialisation in infants: A longitudinal study from 20 to 30 weeks.
MedLine Citation:
PMID:  22650442     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
This longitudinal study examined lateral differences between latency time of the two hands during the development of prehension in 12 infants from 20 to 30 weeks. Latency time (LT) is defined as the delay between the visual localisation of a reachable target and the beginning of the movement and could be considered as a phase in the preparation of action. If LT varies with the hand used and the type of movement, this would suggest differences in information processing (nature and/or quantity). Results show that the latency time is shorter for the left hand approach movements and shorter for the right hand grasping movements. These findings are in favour of a manual specialisation-clearly present from 20 weeks-and are discussed in a possible hemispheric specialisation perspective.
Authors:
F Morange-Majoux; C Lemoine; G Dellatolas
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-6-1
Journal Detail:
Title:  Laterality     Volume:  -     ISSN:  1464-0678     ISO Abbreviation:  -     Publication Date:  2012 Jun 
Date Detail:
Created Date:  2012-6-1     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9609064     Medline TA:  Laterality     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
a Laboratoire de Psychologie et Neuropsychologie Cognitive (FRE 3292) , Université Paris Descartes - CNRS , Boulogne-Billancourt , France.
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