Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
2010-3-3
pubmed:abstractText
Recent theories on the evolution of language (e.g. Corballis, 2009) emphazise the interest of early manifestations of manual laterality and manual specialization in human infants. In the present study, left- and right-hand movements towards a midline object were observed in 24 infants aged 4months in a constrained condition, in which the hands were maintained closed, and in a free condition. A left-hand dominance for approach movements without contact with the object, and a right-hand dominance for reaching movements with object contact was observed in the free condition. In the constrained condition reaching movements of the right hand decreased dramatically. These results are interpreted as strong evidence of manual specialization in 4-month olds, with approach movements having a localization role and reaching movements announcing future right-hand dominance for prehension and object manipulation.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
1090-2147
pubmed:author
pubmed:copyrightInfo
Copyright 2009 Elsevier Inc. All rights reserved.
pubmed:issnType
Electronic
pubmed:volume
72
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
419-22
pubmed:meshHeading
pubmed:year
2010
pubmed:articleTitle
Right-left approach and reaching arm movements of 4-month infants in free and constrained conditions.
pubmed:affiliation
Psychology and Cognitive Neurosciences, CNRS UMR 8189, University Paris Descartes, Institut de Psychologie, 71 Avenue Edouard Vaillant, 92774 Boulogne-Billancourt Cedex, France. francoise.morange-majoux@parisdescartes.fr
pubmed:publicationType
Journal Article, Comparative Study