Cited by 125Sexual Differentiation and DisordersNeuroendocrine regulation and behaviorStress Responses and Cortisol

Prenatal stress feminizes juvenile play patterns in male rats

Ward, Ingeborg L., Stehm, Kathleen E.·1991·Physiology & Behavior

Abstract

Sexually dimorphic rough-and-tumble play patterns were compared in male and female rats derived from control mothers and mothers stressed from days 14-21 of pregnancy. Animals were weaned into groups of 8 consisting of 2 males and 2 females from each treatment. Play in the home cage was recorded at 25, 28, 31, 34, 37 and 45 days of age and was most intense on day 31. The overall level of play was significantly higher in control males than in females or stressed males. Control males showed higher levels of the pinning component of rough-and-tumble play than females or stressed males. No play partner preferences were detected in any group. In adulthood, a higher percentage of stressed than control males displayed the female lordotic pattern. No deficits in ejaculatory behavior occurred in the stressed males. Since maternal stress alters patterns of plasma testosterone in male fetuses, the data suggest that the sexual differentiation of social play begins during prenatal ontogeny in the rat. The present results show that sexually dimorphic behaviors displayed before puberty are incompletely masculinized in prenatally stressed males, a finding similar to that reported for a number of adult behaviors.

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Crossref · 10.1016/0031-9384(91)90552-y

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Authors
Ward, I. L., & Stehm, K. E.
Affiliations
Villanova University (US)
Venue
Physiology & Behavior
Publisher
Elsevier BV
Published
1991-09
Volume
50
Issue
3
Pages
601-605
ISSN
0031-9384 (ISSN-L)
OpenAlex
W2010391369
Cited by
125
References
33
Citations by year
2025: 2 · 2023: 2 · 2021: 2 · 2020: 2 · 2019: 1 · 2018: 3 · 2017: 1 · 2016: 5 · 2015: 4 · 2014: 9 · 2013: 3 · 2012: 3
FWCI
0.93
Type
journal article
Language
en
Open access
closed
Locations
  • Physiology & Behavior (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health (5k05mh000049-15, 5r01hd004688-23)
  • National Institute of Mental Health (2 KO5 MH00049)
  • Eunice Kennedy Shriver National Institute of Child Health and Human Development (HD04688)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Sexual Differentiation and Disorders
  • Social Sciences › Psychology › Social Psychology › Neuroendocrine regulation and behavior
  • Life Sciences › Neuroscience › Behavioral Neuroscience › Stress Responses and Cortisol
Keywords
prenatal stress, maternal stress, rough-and-tumble play, sex differences, juvenile social behavior, lordosis, sexual differentiation, testosterone, masculinization, male rats
MeSH terms
Animals, Behavior, Animal, Ejaculation, Female, Male, Pregnancy, Prenatal Exposure Delayed Effects, Rats, Inbred Strains, Sexual Behavior, Animal, Sexual Maturation, Stress, Psychological, Testosterone, Rats

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