Cited by 115Stress Responses and CortisolAnxiety, Depression, Psychometrics, Treatment, Cognitive ProcessesNeural and Behavioral Psychology Studies

Association between neuroticism and amygdala responsivity emerges under stressful conditions

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Everaerd, Daphne, Klumpers, Floris, van Wingen, Guido, Tendolkar, Indira, Fernández, Guillén·2015·NeuroImage

Abstract

Increased amygdala reactivity in response to salient stimuli is seen in patients with affective disorders, in healthy subjects at risk for these disorders, and in stressed individuals, making it a prime target for mechanistic studies into the pathophysiology of affective disorders. However, whereas individual differences in neuroticism are thought to modulate the effect of stress on mental health, the mechanistic link between stress, neuroticism and amygdala responsivity is unknown. Thus, we studied the relationship between experimentally induced stress, individual differences in neuroticism, and amygdala responsivity. To this end, fearful and happy faces were presented to a large cohort of young, healthy males (n=120) in two separate functional MRI sessions (stress versus control) in a randomized, controlled cross-over design. We revealed that amygdala reactivity was modulated by an interaction between the factors of stress, neuroticism, and the emotional valence of the facial stimuli. Follow-up analysis showed that neuroticism selectively enhanced amygdala responses to fearful faces in the stress condition. Thus, we show that stress unmasks an association between neuroticism and amygdala responsivity to potentially threatening stimuli. This effect constitutes a possible mechanistic link within the complex pathophysiology of affective disorders, and our novel approach appears suitable for further studies targeting the underlying mechanisms.

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  1. Fontaine, A. (Ed.), 2005. Comment j'ai tué mon père. A Film Distribution BV.
  2. Noé, G. (Ed.), 2008. Irréversible. Paradiso Entertainment.
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Authors
Everaerd, D., Klumpers, F., van Wingen, G., Tendolkar, I., & Fernández, G.
Affiliations
Radboud University Nijmegen (NL)
Corresponding author
Everaerd, Daphne
Venue
NeuroImage
Publisher
Elsevier BV
Published
2015-05
Volume
112
Pages
218-224
ISSN
1053-8119 (ISSN-L)
OpenAlex
W2055314272
Cited by
115
References
57
Citations by year
2026: 4 · 2025: 3 · 2024: 4 · 2023: 7 · 2022: 7 · 2021: 5 · 2020: 50 · 2019: 7 · 2018: 5 · 2017: 10 · 2016: 7 · 2015: 6
FWCI
4.81
Type
journal article
Language
en
Open access
Locations
  • NeuroImage (publishedVersion)
  • PubMed (publishedVersion)
  • Pure Amsterdam UMC (publishedVersion)
  • Radboud Repository (Radboud University) (submittedVersion)
  • Data Archiving and Networked Services (DANS) (submittedVersion)
Funders
  • Netherlands Organization for Scientific Research (918.66.613)
  • Radboud University Medical Center
Topics
  • Life Sciences › Neuroscience › Behavioral Neuroscience › Stress Responses and Cortisol
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Anxiety, Depression, Psychometrics, Treatment, Cognitive Processes
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural and Behavioral Psychology Studies
Keywords
neuroticism, stress, individual differences, emotional valence, fearful faces, happy faces, mood disorders, threat detection
MeSH terms
Neuroticism, Adolescent, Adult, Amygdala, Anxiety Disorders, Emotions, Facial Expression, Fear, Hemodynamics, Humans, Hydrocortisone, Individuality, Magnetic Resonance Imaging, Male, Photic Stimulation, Stress, Psychological, Cohort Studies, Cross-Over Studies, Young Adult, Healthy Volunteers

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