Document Detail

Evidence for a maternal effect on infant hand-use preferences.
MedLine Citation:
PMID:  3169378     Owner:  NLM     Status:  MEDLINE    
Left-handed offspring occur more frequently when one or both parents are left-handed. Among parental pairs with discordant handedness, left-handed mothers have more left-handed offspring than do left-handed fathers. No previous study has looked for this maternal effect in the hand-use preferences of infants. Handedness of 42 infants (21 females) 6-13 months of age (M = 10 months) was assessed by a reliable and valid procedure that provides hand-use preference scores separately for reaching and unimanual manipulation of objects. Equal numbers of age-matched male and female infants were formed into three groups representing different patterns of parental handedness: neither parent left-handed, father left-handed, mother left-handed. Infants of left-handed mothers showed more left hand-use than infants of left-handed fathers or infants of right-handed parents. Indeed, 64% of infants with left-handed mothers had significant left hand-use preference scores whereas none of the infants in the other groups had significant left hand-use preference scores. Possible mechanisms for this maternal effect on infant hand-use preferences are discussed.
D A Harkins; G F Michel
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Developmental psychobiology     Volume:  21     ISSN:  0012-1630     ISO Abbreviation:  Dev Psychobiol     Publication Date:  1988 Sep 
Date Detail:
Created Date:  1988-11-22     Completed Date:  1988-11-22     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0164074     Medline TA:  Dev Psychobiol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  535-41     Citation Subset:  IM    
Psychology Department, Clark University, Worcester, MA 01610.
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MeSH Terms
Child Development*
Functional Laterality*
Maternal Behavior*
Psychomotor Performance

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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