Cited by 78Heart Rate Variability and Autonomic ControlVagus Nerve Stimulation ResearchNeural and Behavioral Psychology Studies

Sex differences in the neural correlates of autonomic arousal: a pilot PET study

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Nugent, Allison C., Bain, Earle E., Thayer, Julian F., Sollers, John J., Drevets, Wayne C.·2011·International Journal of Psychophysiology

Abstract

Electrophysiology, behavioral, and neuroimaging studies have revealed sex-related differences in autonomic cardiac control, as reflected in measurements of heart rate variability (HRV). Imaging studies indicate that the neurobiological correlates of autonomic nervous system (ANS) function can be investigated by measuring indices of HRV during the performance of mildly strenuous motor tasks or mildly stressful cognitive tasks. In this preliminary study, fifteen male and seven female healthy subjects underwent H(2)(15)O-positron emission tomography (PET) and electrocardiograph (ECG) recording while performing a handgrip motor task and an n-back task. Indices of HRV were calculated and correlated with regional cerebral blood flow (rCBF). We hypothesized that sex differences would be evident in brain regions known to participate in autonomic regulation: the anterior insula, the anterior cingulate cortex, the orbitofrontal cortex, and the amygdala. Our study found that associations between rCBF and parasympathetic indices differed significantly between female and male subjects in the amygdala. Females showed a positive correlation between rCBF and parasympathetic indices while males exhibited negative correlations. This differential correlation of amygdala rCBF and parasympathetic activity between males and females may reflect differences in parasympathetic/sympathetic balance between sexes, consistent with known sexual dimorphism in the amygdala and closely related structures such as the hypothalamus. These preliminary imaging results are consistent with earlier reports of significant correlation between brain activity and HRV, and extend these findings by demonstrating prominent sex differences in the neural control of the ANS. While the generalizability of our results was limited by the small size of the study samples, the relatively robust effect size of the differences found between groups encourages further work in larger samples to characterize sex differences in the neural correlates of autonomic arousal.

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Crossref · 10.1016/j.ijpsycho.2011.03.001

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  • Autonomic systems are different between males and females, which may contribute to sex differences in stress-induced phenotypes.

    “Autonomic systems are also different between males and females (284), which may also contribute to sex differences in stress-induced phenotypes.”

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Authors
Nugent, A. C., Bain, E. E., Thayer, J. F., Sollers, J. J., & Drevets, W. C.
Affiliations
  • National Institutes of Health (US)
  • Abbott (United States) (US)
  • The Ohio State University (US)
  • University of Auckland (NZ)
  • Laureate Institute for Brain Research (US)
Corresponding author
Nugent, Allison C.
Venue
International Journal of Psychophysiology
Publisher
Elsevier BV
Published
2011-06
Volume
80
Issue
3
Pages
182-191
ISSN
0167-8760 (ISSN-L)
OpenAlex
W2059352588
Cited by
78
References
76
Citations by year
2026: 1 · 2025: 5 · 2024: 5 · 2023: 5 · 2022: 3 · 2021: 7 · 2020: 8 · 2019: 4 · 2018: 5 · 2017: 6 · 2016: 3 · 2015: 4 · 2014: 5 · 2013: 7 · 2012: 7
FWCI
4.82
Type
journal article
Language
en
Open access
Locations
  • International Journal of Psychophysiology (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
National Institutes of Health (Z99 MH999999)
Topics
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Heart Rate Variability and Autonomic Control
  • Life Sciences › Neuroscience › Neurology › Vagus Nerve Stimulation Research
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural and Behavioral Psychology Studies
Keywords
sex differences, autonomic arousal, heart rate variability, autonomic nervous system, regional cerebral blood flow, amygdala, parasympathetic activity, sympathetic activity, sexual dimorphism, n-back task, anterior insula, anterior cingulate cortex, orbitofrontal cortex
MeSH terms
Adult, Amygdala, Arousal, Autonomic Nervous System, Cerebrovascular Circulation, Female, Frontal Lobe, Gyrus Cinguli, Humans, Male, Oxygen Radioisotopes, Pilot Projects, Sex Characteristics, Hand Strength, Positron-Emission Tomography, Young Adult

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