Cited by 67Neuroendocrine regulation and behaviorStress Responses and CortisolNeuropeptides and Animal Physiology

Oxytocin reduces amygdala responses during threat approach

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Radke, Sina, Volman, Inge, Kokal, Idil, Roelofs, Karin, de Bruijn, Ellen R.A., Toni, Ivan·2017·Psychoneuroendocrinology

Abstract

Oxytocin reduces amygdala responses to threatening social stimuli in males and has been suggested to facilitate approach-related processing by either decreasing anxiety or intensifying salience. The current administration study tested whether oxytocin either reduces or enhances amygdala responses during threat approach in a placebo-controlled randomized, double-blind, between-subjects design with 52 healthy males undergoing fMRI during a social approach-avoidance task. Oxytocin decreased amygdala activation during threat approach and not during threat avoidance. This neural effect supports oxytocin's social anxiolytic effects and provides a neuroendocrine mechanism promoting social approach. The findings may yield clinical implications for individuals suffering from dysregulations of social approach such as patients with anxiety disorders.

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Crossref · 10.1016/j.psyneuen.2017.02.028

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  • Radke et al. (2017) found a significant increase in avoidance reaction times with a moderate effect size (ES = -0.56, 95% CI [-1.11, -0.002], total N = 52).

    “Conversely, Radke et al. (2017) found that oxytocin led to a non-significant increase in approach reaction times towards social threat with a moderate effect size (ES = -0.51,95% [-1.07, 0.04], total N = 52), and a significant increase in avoidance reaction times with a moderate effect size (ES = -0.56,95% CI [-1.11, -0.002], total N = 52).”
  • Radke et al. (2017) found that oxytocin led to a non-significant increase in approach reaction times towards social threat with a moderate effect size (ES = -0.51, 95% [-1.07, 0.04], total N = 52).

    “Conversely, Radke et al. (2017) found that oxytocin led to a non-significant increase in approach reaction times towards social threat with a moderate effect size (ES = -0.51,95% [-1.07, 0.04], total N = 52), and a significant increase in avoidance reaction times with a moderate effect size (ES = -0.56,95% CI [-1.11, -0.002], total N = 52).”
  • Neural substrates mediating oxytocin's effects on approach-avoidance behavior remain unclear, with initial evidence showing decreased amygdala activity only when approaching angry faces.

    “Moreover, the neural substrates mediating OT’s effects on AA behavior also remain unclear, with initial evidence showing decreased amygdala activity only when approaching angry faces (Radke et al., 2017).”

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Authors
Radke, S., Volman, I., Kokal, I., Roelofs, K., de Bruijn, E. R. A., & Toni, I.
Affiliations
Radboud University Nijmegen (NL)
Corresponding author
Radke, Sina
Venue
Psychoneuroendocrinology
Publisher
Elsevier BV
Published
2017-05
Volume
79
Pages
160-166
ISSN
0306-4530 (ISSN-L)
OpenAlex
W2594360226
Cited by
67
References
62
Citations by year
2026: 4 · 2025: 5 · 2024: 2 · 2023: 7 · 2022: 7 · 2021: 5 · 2020: 12 · 2019: 9 · 2018: 10 · 2017: 6
FWCI
14.49
Type
journal article
Language
en
Open access
Locations
  • Psychoneuroendocrinology (publishedVersion)
  • PubMed (publishedVersion)
  • Leiden Repository (Leiden University) (submittedVersion)
  • RWTH Publications (RWTH Aachen) (submittedVersion)
  • Radboud Repository (Radboud University) (submittedVersion)
  • Zenodo (CERN European Organization for Nuclear Research) (submittedVersion, other-oa)
  • Data Archiving and Networked Services (DANS) (submittedVersion)
Funders
  • European Commission (660397, HORIZON2020)
  • Nederlandse Organisatie voor Wetenschappelijk Onderzoek (453-12-001, 452-12-005)
  • Horizon 2020 Framework Programme (MSCA-IF-2014)
  • FP7 Ideas: European Research Council (313749)
Topics
  • Social Sciences › Psychology › Social Psychology › Neuroendocrine regulation and behavior
  • Life Sciences › Neuroscience › Behavioral Neuroscience › Stress Responses and Cortisol
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuropeptides and Animal Physiology
Keywords
oxytocin, amygdala, threat avoidance, anxiety, social salience, social anxiety disorder
MeSH terms
Administration, Intranasal, Adolescent, Adult, Amygdala, Double-Blind Method, Emotions, Facial Expression, Humans, Image Processing, Computer-Assisted, Magnetic Resonance Imaging, Male, Oxytocin, Social Behavior, Young Adult

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