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  Alexithymia and automatic processing of facial emotions: Behavioral and neural findings

Rosenberg, N., Ihme, K., Lichev, V., Sacher, J., Rufer, M., Grabe, H. J., et al. (2020). Alexithymia and automatic processing of facial emotions: Behavioral and neural findings. BMC Neuroscience, 21(1): 23. doi:10.1186/s12868-020-00572-6.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0006-8515-C Version Permalink: http://hdl.handle.net/21.11116/0000-0006-851D-4
Genre: Journal Article

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 Creators:
Rosenberg, Nicole1, Author
Ihme, Klas2, Author
Lichev, Vladimir1, Author
Sacher, Julia3, 4, Author              
Rufer, Michael5, Author
Grabe, Hans Jörgen6, Author
Kugel, Harald7, Author
Pampel, André8, Author              
Lepsien, Jöran8, Author              
Kersting, Anette1, Author
Villringer, Arno3, 4, Author              
Suslow, Thomas1, Author
Affiliations:
1Department of Psychosomatic Medicine and Psychotherapy, University of Leipzig, Germany, ou_persistent22              
2Institute of Transportation Systems, German Aerospace Center, Brunswick, Germany, ou_persistent22              
3Department Neurology, MPI for Human Cognitive and Brain Sciences, Max Planck Society, ou_634549              
4Clinic for Cognitive Neurology, University of Leipzig, Germany, ou_persistent22              
5Department of Psychiatry, Psychotherapy and Psychosomatics, University Hospital Zurich, Switzerland, ou_persistent22              
6Department of Psychiatry, University Medicine Greifswald, Germany, ou_persistent22              
7Department of Clinical Radiology, Münster University, Germany, ou_persistent22              
8Methods and Development Unit Nuclear Magnetic Resonance, MPI for Human Cognitive and Brain Sciences, Max Planck Society, Leipzig, DE, ou_634558              

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Free keywords: Alexithymia; Automatic processing; Fantasizing; Imagination; Priming; Toronto Structured Interview for Alexithymia
 Abstract: Background: Alexithymia is a personality trait characterized by difficulties identifying and describing feelings, an externally oriented style of thinking, and a reduced inclination to imagination. Previous research has shown deficits in the recognition of emotional facial expressions in alexithymia and reductions of brain responsivity to emotional stimuli. Using an affective priming paradigm, we investigated automatic perception of facial emotions as a function of alexithymia at the behavioral and neural level. In addition to self-report scales, we applied an interview to assess alexithymic tendencies. Results: During 3 T fMRI scanning, 49 healthy individuals judged valence of neutral faces preceded by briefly shown happy, angry, fearful, and neutral facial expressions. Alexithymia was assessed using the 20-Item Toronto Alexithymia Scale (TAS-20), the Bermond-Vorst Alexithymia Questionnaire (BVAQ) and the Toronto Structured Interview for Alexithymia (TSIA). As expected, only negative correlations were found between alexithymic features and affective priming. The global level of self-reported alexithymia (as assessed by the TAS-20 and the BVAQ) was found to be related to less affective priming owing to angry faces. At the facet level, difficulties identifying feelings, difficulties analyzing feelings, and impoverished fantasy (as measured by the BVAQ) were correlated with reduced affective priming due to angry faces. Difficulties identifying feelings (BVAQ) correlated also with reduced affective priming due to fearful faces and reduced imagination (TSIA) was related to decreased affective priming due to happy faces. There was only one significant correlation between alexithymia dimensions and automatic brain response to masked facial emotions: TAS-20 alexithymia correlated with heightened brain response to masked happy faces in superior and medial frontal areas. Conclusions: Our behavioral results provide evidence that alexithymic features are related in particular to less sensitivity for covert facial expressions of anger. The perceptual alterations could reflect impaired automatic recognition or integration of social anger signals into judgemental processes and might contribute to the problems in interpersonal relationships associated with alexithymia. Our findings suggest that self-report measures of alexithymia may have an advantage over interview-based tests as research tools in the field of emotion perception at least in samples of healthy individuals characterized by rather low levels of alexithymia.

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Language(s): eng - English
 Dates: 2018-12-172020-05-202020-05-29
 Publication Status: Published online
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: DOI: 10.1186/s12868-020-00572-6
PMID: 32471365
PMC: PMC7257227
 Degree: -

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Title: BMC Neuroscience
Source Genre: Journal
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Publ. Info: BioMed Central
Pages: - Volume / Issue: 21 (1) Sequence Number: 23 Start / End Page: - Identifier: ISSN: 1471-2202
CoNE: https://pure.mpg.de/cone/journals/resource/111000136905018