Document Detail

Handedness and season of birth: a gender-invariant relation.
MedLine Citation:
PMID:  10213539     Owner:  NLM     Status:  MEDLINE    
In an earlier study, Dellatolas, Curt and Lellouch (1991) concluded that handedness is not related to season of birth. However, post-hoc exploration of their and other sets of data has shown that there is an apparent tendency for left-handedness to be more prevalent in the period March-July than in the period August-February. The present work tested this seasonal hypothesis prospectively among university students. It was found that the proportion of all left-handed participants who were born in the period March-July was indeed significantly greater than the proportion of all right-handed participants who were born in the same period. Furthermore, the pattern of seasonal influence upon handedness did not vary significantly between females and males. The relation between handedness and season of birth may be linked to seasonal variation in other factors such as the incidence of infectious agents.
M Martin; G V Jones
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Cortex; a journal devoted to the study of the nervous system and behavior     Volume:  35     ISSN:  0010-9452     ISO Abbreviation:  Cortex     Publication Date:  1999 Feb 
Date Detail:
Created Date:  1999-06-21     Completed Date:  1999-06-21     Revised Date:  2009-11-11    
Medline Journal Info:
Nlm Unique ID:  0100725     Medline TA:  Cortex     Country:  ITALY    
Other Details:
Languages:  eng     Pagination:  123-8     Citation Subset:  IM    
University of Oxford, UK.
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MeSH Terms
Functional Laterality / physiology*
Labor, Obstetric / physiology*
Prospective Studies
Sex Factors

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

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