Document Detail

Hormone-behavior associations in early infancy.
MedLine Citation:
PMID:  19699203     Owner:  NLM     Status:  MEDLINE    
The physiological significance of hormonal changes in early postnatal life is emerging, but the behavioral significance in humans is unknown. As a first test of the relationship between hormones and behavior in early infancy we measured digit ratios and salivary hormone levels in forty-one male and female infants (3-4 months of age) who watched a video depicting stimuli differentially preferred by older males and females (toys, groups). An eye-tracker measured visual fixations and looking times. In female infants, hormones were unrelated to visual preferences. In male infants, higher androgen levels predicted stronger preferences for male-typical stimuli. These data provide the first evidence for a role for hormones in emerging sex-linked behavior in early development.
Gerianne M Alexander; Teresa Wilcox; Mary Elizabeth Farmer
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Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, Non-P.H.S.     Date:  2009-08-19
Journal Detail:
Title:  Hormones and behavior     Volume:  56     ISSN:  1095-6867     ISO Abbreviation:  Horm Behav     Publication Date:  2009 Nov 
Date Detail:
Created Date:  2009-11-09     Completed Date:  2010-02-23     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0217764     Medline TA:  Horm Behav     Country:  United States    
Other Details:
Languages:  eng     Pagination:  498-502     Citation Subset:  IM    
Deparment of Psychology, TAMU-2435, Texas A&M University, College Station, TX 77845, USA.
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MeSH Terms
Child Development
Choice Behavior / physiology*
Discrimination (Psychology) / physiology
Estradiol / metabolism*
Eye Movements / physiology*
Fingers / anatomy & histology
Infant Behavior / physiology*
Pattern Recognition, Visual / physiology
Photic Stimulation
Play and Playthings
Saliva / metabolism
Sex Factors
Testosterone / metabolism*
Visual Perception / physiology
Reg. No./Substance:
50-28-2/Estradiol; 58-22-0/Testosterone

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

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