Cited by 1,171Stress Responses and CortisolChild Abuse and TraumaMemory and Neural Mechanisms

Stress- and Allostasis-Induced Brain Plasticity

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McEwen, Bruce S., Gianaros, Peter J.·2011·Annual Review of Medicine

Abstract

The brain is the key organ of stress processes. It determines what individuals will experience as stressful, it orchestrates how individuals will cope with stressful experiences, and it changes both functionally and structurally as a result of stressful experiences. Within the brain, a distributed, dynamic, and plastic neural circuitry coordinates, monitors, and calibrates behavioral and physiological stress response systems to meet the demands imposed by particular stressors. These allodynamic processes can be adaptive in the short term (allostasis) and maladaptive in the long term (allostatic load). Critically, these processes involve bidirectional signaling between the brain and body. Consequently, allostasis and allostatic load can jointly affect vulnerability to brain-dependent and stress-related mental and physical health conditions. This review focuses on the role of brain plasticity in adaptation to, and pathophysiology resulting from, stressful experiences. It also considers interventions to prevent and treat chronic and prevalent health conditions via allodynamic brain mechanisms.

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Crossref · 10.1146/annurev-med-052209-100430

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  • Environmental conditions and interpersonal interactions, whether positive or negative, become biologically embedded and shape or canalize brain and behavioral development.

    “environmental conditions and interpersonal interactions, both positive and negative, are embedded biologically, shaping or canalizing the development of brain and behavior”

    From School Readiness and Self-Regulation: A Developmental Psychobiological Approach (2015) · cites this paper as McEwen & Gianaros 2011

    The Introduction says environmental exposure interacts with genetic liability from in utero onward, and that stressful experiences can produce adaptive or maladaptive changes in brain plasticity and behavior. The Interventions section also discusses interpersonal relationships and social support. The paper does not establish the broader claim that positive and negative environmental conditions and interpersonal interactions generally become biologically embedded and canalize brain and behavioral development. (LLM, conf=0.83)

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  • Extensive literature links ELA to pervasive, quantifiable variation in brain structure and function.

    “Extensive literature links ELA to pervasive, quantifiable variation in brain structure and function [15, 21, 24, 25].”

    From Biological embedding of childhood adversity: from physiological mechanisms to clinical implications (2017) · cites this paper as [15]

    The section “Brain Systems Mediating and Targeted by Allodynamic Processes” reports measurable differences in brain structure and function associated with stress, including gray-matter volume and amygdala reactivity. The passages concern chronic or other stressful experiences generally, not specifically early-life adversity (ELA), so they do not establish the claim at that level of specificity. Page numbers were not available in our copy. (LLM, conf=0.84)

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  • HPA hyper- and hypo-reactivity both represent prototypical patterns associated with excess allostatic load, and both predict human stress-related chronic illnesses including cardiovascular, metabolic, and psychiatric diseases linked epidemiologically to ELA.

    “Importantly, HPA hyper- and hypo-reactivity both represent prototypical patterns associated with excess allostatic load, and both predict human stress-related chronic illnesses, including cardiovascular, metabolic, and psychiatric diseases linked epidemiologically to ELA [15, 29, 48].”

    From Biological embedding of childhood adversity: from physiological mechanisms to clinical implications (2017) · cites this paper as [15]

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  • An aggregative approach to conceptualize early life adversity is supported by observed dose-response effects linking cumulative early adversity to later outcomes and by the allostatic load paradigm.

    “Such an approach facilitates the synthesis of complex evidence for application, and is supported by observed dose–response effects linking cumulative early adversity to later outcomes [1, 3, 5], and by the “allostatic load” paradigm exploring pathogenic effects of cumulative all-cause stress [15].”
  • Chronic or excessive activation of stress-response systems contributes to the pathogenic physiological "wear and tear" described within the allostatic load paradigm.

    “However, chronic or excessive activation contributes to the pathogenic physiological “wear and tear” described within the allostatic load paradigm [15, 29].”

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Authors
McEwen, B. S., & Gianaros, P. J.
Affiliations
  • Rockefeller University (US)
  • University of Pittsburgh (US)
Venue
Annual Review of Medicine
Published
2011-02-18
Volume
62
Issue
1
Pages
431-445
ISSN
  • 0066-4219 (ISSN-L)
  • 1545-326X
OpenAlex
W2116769635
Cited by
1,171
References
74
Citations by year
2026: 96 · 2025: 100 · 2024: 78 · 2023: 55 · 2022: 98 · 2021: 81 · 2020: 81 · 2019: 86 · 2018: 60 · 2017: 83 · 2016: 79 · 2015: 64 · 2014: 73 · 2013: 54 · 2012: 58
FWCI
3.81
Type
journal article
Language
en
Open access
Locations
  • Annual Review of Medicine (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institutes of Health
  • National Heart, Lung, and Blood Institute (R01HL089850)
  • National Institute of Mental Health (5P01 MH58911, K01MH070616, R01 MH41256, P50MH058911, R01MH041256)
Topics
  • Life Sciences › Neuroscience › Behavioral Neuroscience › Stress Responses and Cortisol
  • Social Sciences › Psychology › Clinical Psychology › Child Abuse and Trauma
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
Keywords
allostasis, allostatic load, neuroplasticity, stress response, stress-related disorders, stress adaptation, stress coping
MeSH terms
Adaptation, Physiological, Adaptation, Psychological, Animals, Brain, Female, Humans, Male, Neuronal Plasticity, Stress, Physiological, Stress, Psychological, Mice, Rats, Allostasis

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