Cited by 97Sexual Differentiation and DisordersGenetic and Clinical Aspects of Sex Determination and Chromosomal AbnormalitiesNeuroendocrine regulation and behavior

Fast, furious and enduring: Sensitive versus critical periods in sexual differentiation of the brain

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McCarthy, Margaret M., Herold, Kevin, Stockman, Sara L.·2018·Physiology & Behavior

Abstract

Understanding critical periods in brain development and how they impact adult functioning is a primary goal of neuroscience. The sexual differentiation of the brain is a unique critical period in that it is initiated by endogenous production of a critical signaling molecule in only one sex, testosterone in fetal males. Females, by contrast, do not produce testosterone but are highly responsive to it and remain sensitive to its masculinizing effects well past the close of the critical period in males. Compared to other well characterized critical periods, such as those for the visual system or barrel cortex, the masculinization of the brain is telescoped into a few short days and initiated prenatally. The slightly longer and postnatal sensitive period in females provides a valuable tool for understanding this challenging but fundamental developmental process.

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Crossref · 10.1016/j.physbeh.2017.10.030

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  • In rodents, sexual differentiation processes occur during a critical period beginning just days prior to birth and ending shortly after parturition.

    “In rodents, these processes occur during a critical period of life beginning just days prior to birth and ending shortly after parturition (McCarthy et al., 2018).”

    From Developmental origins of sex differences in the neural circuitry of play (2020) · cites this paper as McCarthy et al., 2018

    The “Critical periods versus sensitive periods” section places the onset of the rodent critical window before birth, with fetal androgen production beginning several days prenatally. But it says the window’s closing varies by endpoint and that females remain sensitive longer than males; the “beginning and an end but also a middle” section gives an example extending to about postnatal day 10. Thus, a single end point shortly after birth overgeneralizes the paper’s account. (LLM, conf=0.86)

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Research works printed but not linked: 1

  1. Ogawa S Eng V Taylor J Lubahn DB Korach K Pfaff DW 1998 Roles of estrogen receptor-α gene expression in reproduction-related behaviors in female mice Endocrinology 139 5070 81 9832446

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Authors
McCarthy, M. M., Herold, K., & Stockman, S. L.
Affiliations
University of Maryland, Baltimore (US)
Corresponding author
McCarthy, Margaret M.
Venue
Physiology & Behavior
Publisher
Elsevier BV
Published
2018-04
Volume
187
Pages
13-19
ISSN
0031-9384 (ISSN-L)
OpenAlex
W2765733758
Cited by
97
References
39
Citations by year
2026: 3 · 2025: 9 · 2024: 11 · 2023: 8 · 2022: 11 · 2021: 21 · 2020: 21 · 2019: 8 · 2018: 4 · 2017: 1
FWCI
0.87
Type
journal article
Language
en
Open access
Locations
  • Physiology & Behavior (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institute of Mental Health (R01MH052716)
  • National Institute on Drug Abuse (R01DA039062)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Sexual Differentiation and Disorders
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic and Clinical Aspects of Sex Determination and Chromosomal Abnormalities
  • Social Sciences › Psychology › Social Psychology › Neuroendocrine regulation and behavior
Keywords
sexual differentiation of the brain, critical period, sensitive period, testosterone, masculinization, prenatal hormone exposure, sex differences, brain development
MeSH terms
Animals, Brain, Critical Period, Psychological, Humans, Nerve Net, Sex Characteristics, Gene Expression Regulation, Developmental, Epigenomics

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