Cited by 334Treatment of Major DepressionPhysical Activity and HealthNeural and Behavioral Psychology Studies

Exercise effects on depression: Possible neural mechanisms

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Gujral, Swathi, Aizenstein, Howard, Reynolds, Charles F., Butters, Meryl A., Erickson, Kirk I.·2017·General Hospital Psychiatry

Abstract

Depression is a syndrome of stress- and emotion-dysregulation, involving compromised structural integrity of frontal-limbic networks. Meta-analytic evidence indicates that volumetric reductions in the hippocampus, anterior cingulate cortex, prefrontal cortex, striatum, and amygdala, as well as compromised white matter integrity are frequently observed in depressed adults. Exercise has shown promise as an effective treatment for depression, but few studies have attempted to characterize or identify the neural mechanisms of these effects. In this review, we examined the overlap between structural brain abnormalities in depression and the effects of exercise on brain structure in adults, to highlight possible neural mechanisms that may mediate the positive effects of exercise on depressive symptoms. The prefrontal cortex, anterior cingulate cortex, hippocampus, and corpus callosum emerged as structural neural markers that may serve as targets for exercise-based treatments for depression. These findings highlight the need for randomized exercise interventions to test these proposed neurobiological mechanisms of exercise on depression.

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Crossref · 10.1016/j.genhosppsych.2017.04.012

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  • Most studies report that the cause of depression is related to the dysfunction of neurotransmitters such as serotonin, dopamine, and norepinephrine.

    “At present, most studies report that the cause of depression is related to the dysfunction of neurotransmitters such as serotonin (5-hydroxytryptamine), dopamine, and norepinephrine [61].”
  • Most of the brain regions that have enhanced activation and function following exercise training are well known for their importance in affective reactivity within the DMN pathways, particularly the ventromedial PFC and its regulation of reactivity within subcortical and insular brain regions.

    “Indeed, most of the brain regions that have enhanced activation and function following exercise training are well known for their importance in affective reactivity within the DMN pathways, particularly the ventromedial PFC and its regulation of reactivity within subcortical and insular brain regions (83).”

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Authors
Gujral, S., Aizenstein, H., Reynolds, C. F., Butters, M. A., & Erickson, K. I.
Affiliations
University of Pittsburgh (US)
Corresponding author
Gujral, Swathi
Venue
General Hospital Psychiatry
Publisher
Elsevier BV
Published
2017-11
Volume
49
Pages
2-10
ISSN
0163-8343 (ISSN-L)
OpenAlex
W2767771037
Cited by
334
References
97
Citations by year
2026: 33 · 2025: 42 · 2024: 55 · 2023: 67 · 2022: 40 · 2021: 34 · 2020: 40 · 2019: 12 · 2018: 10
FWCI
2.15
Type
journal article
Language
en
Open access
Locations
  • General Hospital Psychiatry (acceptedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
National Science Foundation (P30 MH090333, R01 DK095172, P30 AG024827, P30 MH90333, P50 AG005133, 2014192810)
Topics
  • Health Sciences › Medicine › Pharmacology › Treatment of Major Depression
  • Health Sciences › Medicine › Physiology › Physical Activity and Health
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural and Behavioral Psychology Studies
Keywords
physical activity, depression, neural mechanisms, brain structure, hippocampus, anterior cingulate cortex, prefrontal cortex, corpus callosum, white matter integrity, structural brain abnormalities, neuroplasticity
MeSH terms
Adult, Aged, Aged, 80 and over, Brain, Depression, Depressive Disorder, Exercise Therapy, Humans, Middle Aged, Young Adult

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