Cited by 151Anxiety, Depression, Psychometrics, Treatment, Cognitive ProcessesNeural and Behavioral Psychology StudiesNeurotransmitter Receptor Influence on Behavior

Modeling Avoidance in Mood and Anxiety Disorders Using Reinforcement Learning

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Mkrtchian, Anahit, Aylward, Jessica, Dayan, Peter, Roiser, Jonathan P., Robinson, Oliver J.·2017·Biological Psychiatry

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Abstract

BACKGROUND: Serious and debilitating symptoms of anxiety are the most common mental health problem worldwide, accounting for around 5% of all adult years lived with disability in the developed world. Avoidance behavior-avoiding social situations for fear of embarrassment, for instance-is a core feature of such anxiety. However, as for many other psychiatric symptoms the biological mechanisms underlying avoidance remain unclear. METHODS: Reinforcement learning models provide formal and testable characterizations of the mechanisms of decision making; here, we examine avoidance in these terms. A total of 101 healthy participants and individuals with mood and anxiety disorders completed an approach-avoidance go/no-go task under stress induced by threat of unpredictable shock. RESULTS: We show an increased reliance in the mood and anxiety group on a parameter of our reinforcement learning model that characterizes a prepotent (pavlovian) bias to withhold responding in the face of negative outcomes. This was particularly the case when the mood and anxiety group was under stress. CONCLUSIONS: This formal description of avoidance within the reinforcement learning framework provides a new means of linking clinical symptoms with biophysically plausible models of neural circuitry and, as such, takes us closer to a mechanistic understanding of mood and anxiety disorders.

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Crossref · 10.1016/j.biopsych.2017.01.017

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  • Aversion models in rodents are perhaps the closest pre-clinical approximation to avoidance behaviors.

    “Aversion models in rodents are perhaps the closest pre-clinical approximation to avoidance behaviors [56], although limitations regarding clinical validity need to be kept in mind when interpreting results.”

    From Baseline Pro-Inflammatory Cytokine Levels Moderate Psychological Inflexibility in Behavioral Treatment for Chronic Pain (2022) · cites this paper as [56]

    The paper’s introductory discussion describes a threat-of-shock procedure as translationally validated across human and animal models, and says an avoidance bias has been observed in both. It does not say that rodent aversion models are the closest preclinical approximation to avoidance behavior. (LLM, conf=0.76)

    Experimental — accuracy not yet measured
  • Mkrtchian et al recently demonstrated avoidance as a part of reinforcement learning pathways in individuals with anxiety disorders.

    “For example, Mkrtchian et al [18] recently demonstrated avoidance as a part of reinforcement learning pathways in individuals with anxiety disorders.”

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Authors
Mkrtchian, A., Aylward, J., Dayan, P., Roiser, J. P., & Robinson, O. J.
Affiliations
  • University College London (GB)
  • Gatsby Computational Neuroscience Unit (GB)
Corresponding author
Robinson, Oliver J.
Venue
Biological Psychiatry
Publisher
Elsevier BV
Published
2017-10
Volume
82
Issue
7
Pages
532-539
ISSN
0006-3223 (ISSN-L)
OpenAlex
W2587263457
Cited by
151
References
35
Citations by year
2026: 16 · 2025: 20 · 2024: 13 · 2023: 25 · 2022: 13 · 2021: 23 · 2020: 14 · 2019: 15 · 2018: 7 · 2017: 4 · 2016: 1
FWCI
14.24
Type
journal article
Language
en
Open access
Locations
  • Biological Psychiatry (publishedVersion, cc-by)
  • bioRxiv (Cold Spring Harbor Laboratory) (acceptedVersion, cc-by-nc)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • UCL Discovery (University College London) (submittedVersion)
Funders
Medical Research Council (MR/K024280/1)
Topics
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Anxiety, Depression, Psychometrics, Treatment, Cognitive Processes
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural and Behavioral Psychology Studies
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
Keywords
avoidance behavior, mood disorders, anxiety disorders, reinforcement learning models, go/no-go task, stress, Pavlovian bias, neural circuits
MeSH terms
Adolescent, Adult, Anxiety, Avoidance Learning, Bayes Theorem, Decision Making, Female, Humans, Male, Middle Aged, Models, Psychological, Psychiatric Status Rating Scales, Reinforcement, Psychology, Mood Disorders, Young Adult

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