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In the face of stress: Interpreting individual differences in stress-induced facial expressions
Linköping University, Department of Clinical and Experimental Medicine, Center for Social and Affective Neuroscience. Linköping University, Faculty of Medicine and Health Sciences.ORCID iD: 0000-0002-0645-4869
Linköping University, Department of Clinical and Experimental Medicine, Center for Social and Affective Neuroscience. Linköping University, Faculty of Medicine and Health Sciences. Region Östergötland, Local Health Care Services in Central Östergötland, Psykiatriska kliniken inkl beroendekliniken.
2019 (English)In: NEUROBIOLOGY OF STRESS, ISSN 2352-2895, Vol. 10, article id 100166Article, review/survey (Refereed) Published
Abstract [en]

Stress is an inevitable part of life that can profoundly impact social and emotional functioning, contributing to the development of psychiatric disease. One key component of emotion and social processing is facial expressions, which humans can readily detect and react to even without conscious awareness. Facial expressions have been the focus of philosophic and scientific interest for centuries. Historically, facial expressions have been relegated to peripheral indices of fixed emotion states. More recently, affective neuroscience has undergone a conceptual revolution, resulting in novel interpretations of these muscle movements. Here, we review the role of facial expressions according to the leading affective neuroscience theories, including constructed emotion and social-motivation accounts. We specifically highlight recent data (Mayo et al, 2018) demonstrating the way in which stress shapes facial expressions and how this is influenced by individual factors. In particular, we focus on the consequence of genetic variation within the endocannabinoid system, a neuromodulatory system implicated in stress and emotion, and its impact on stress-induced facial muscle activity. In a re-analysis of this dataset, we highlight how gender may also influence these processes, conceptualized as variation in the "fight-or-flight" or "tend-and-befriend" behavioral responses to stress. We speculate on how these interpretations may contribute to a broader understanding of facial expressions, discuss the potential use of facial expressions as a trans-diagnostic marker of psychiatric disease, and suggest future work necessary to resolve outstanding questions.

Place, publisher, year, edition, pages
ELSEVIER SCIENCE INC , 2019. Vol. 10, article id 100166
Keywords [en]
Facial expression; Affect; Emotion; Stress; Anandamide; Gender differences
National Category
Medical Biotechnology (with a focus on Cell Biology (including Stem Cell Biology), Molecular Biology, Microbiology, Biochemistry or Biopharmacy)
Identifiers
URN: urn:nbn:se:liu:diva-159600DOI: 10.1016/j.ynstr.2019.100166ISI: 000477761300032PubMedID: 31193535OAI: oai:DiVA.org:liu-159600DiVA, id: diva2:1342256
Note

Funding Agencies|Swedish Research Council [2013-7434]

Available from: 2019-08-13 Created: 2019-08-13 Last updated: 2019-08-13

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Mayo, LeahHeilig, Markus
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Center for Social and Affective NeuroscienceFaculty of Medicine and Health SciencesPsykiatriska kliniken inkl beroendekliniken
Medical Biotechnology (with a focus on Cell Biology (including Stem Cell Biology), Molecular Biology, Microbiology, Biochemistry or Biopharmacy)

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