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Altered frontal electroencephalography as a potential correlate of acute dissociation in dissociative disorders: novel findings from a mirror confrontation study

People suffering from chronic dissociation often experience stress and detachment during self-perception. We tested 18 people with dissociative disorders not otherwise specified (DDNOS; compared with a matched sample of 18 healthy controls) undergoing a stress-inducing facial mirror confrontation pa...

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Autores principales: Schäflein, Eva, Mertens, Yoki Linn, Lejko, Nena, Beutler, Sarah, Sattel, Heribert, Sack, Martin
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Cambridge University Press 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9707509/
https://www.ncbi.nlm.nih.gov/pubmed/36353799
http://dx.doi.org/10.1192/bjo.2022.593
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author Schäflein, Eva
Mertens, Yoki Linn
Lejko, Nena
Beutler, Sarah
Sattel, Heribert
Sack, Martin
author_facet Schäflein, Eva
Mertens, Yoki Linn
Lejko, Nena
Beutler, Sarah
Sattel, Heribert
Sack, Martin
author_sort Schäflein, Eva
collection PubMed
description People suffering from chronic dissociation often experience stress and detachment during self-perception. We tested 18 people with dissociative disorders not otherwise specified (DDNOS; compared with a matched sample of 18 healthy controls) undergoing a stress-inducing facial mirror confrontation paradigm, and measured acute dissociation and frontal electroencephalography (measured with a four-channel system) per experimental condition (e.g. confrontation with negative cognition). Linear mixed models indicated a significant group×time×condition effect, with DDNOS group depicting less electroencephalography power than healthy controls at the beginning of mirror confrontation combined with negative and positive cognition. This discrepancy – most prominent in the negative condition – diminished in the second minute. Correlational analyses depicted a positive association between initial electroencephalography power and acute dissociation in the DDNOS group. These preliminary findings may indicate altered neural processing in DDNOS, but require further investigation with more precise electroencephalography measures.
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spelling pubmed-97075092022-12-05 Altered frontal electroencephalography as a potential correlate of acute dissociation in dissociative disorders: novel findings from a mirror confrontation study Schäflein, Eva Mertens, Yoki Linn Lejko, Nena Beutler, Sarah Sattel, Heribert Sack, Martin BJPsych Open Short Report People suffering from chronic dissociation often experience stress and detachment during self-perception. We tested 18 people with dissociative disorders not otherwise specified (DDNOS; compared with a matched sample of 18 healthy controls) undergoing a stress-inducing facial mirror confrontation paradigm, and measured acute dissociation and frontal electroencephalography (measured with a four-channel system) per experimental condition (e.g. confrontation with negative cognition). Linear mixed models indicated a significant group×time×condition effect, with DDNOS group depicting less electroencephalography power than healthy controls at the beginning of mirror confrontation combined with negative and positive cognition. This discrepancy – most prominent in the negative condition – diminished in the second minute. Correlational analyses depicted a positive association between initial electroencephalography power and acute dissociation in the DDNOS group. These preliminary findings may indicate altered neural processing in DDNOS, but require further investigation with more precise electroencephalography measures. Cambridge University Press 2022-11-10 /pmc/articles/PMC9707509/ /pubmed/36353799 http://dx.doi.org/10.1192/bjo.2022.593 Text en © The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/This is an Open Access article, distributed under the terms of the Creative Commons Attribution licence (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted re-use, distribution and reproduction, provided the original article is properly cited.
spellingShingle Short Report
Schäflein, Eva
Mertens, Yoki Linn
Lejko, Nena
Beutler, Sarah
Sattel, Heribert
Sack, Martin
Altered frontal electroencephalography as a potential correlate of acute dissociation in dissociative disorders: novel findings from a mirror confrontation study
title Altered frontal electroencephalography as a potential correlate of acute dissociation in dissociative disorders: novel findings from a mirror confrontation study
title_full Altered frontal electroencephalography as a potential correlate of acute dissociation in dissociative disorders: novel findings from a mirror confrontation study
title_fullStr Altered frontal electroencephalography as a potential correlate of acute dissociation in dissociative disorders: novel findings from a mirror confrontation study
title_full_unstemmed Altered frontal electroencephalography as a potential correlate of acute dissociation in dissociative disorders: novel findings from a mirror confrontation study
title_short Altered frontal electroencephalography as a potential correlate of acute dissociation in dissociative disorders: novel findings from a mirror confrontation study
title_sort altered frontal electroencephalography as a potential correlate of acute dissociation in dissociative disorders: novel findings from a mirror confrontation study
topic Short Report
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9707509/
https://www.ncbi.nlm.nih.gov/pubmed/36353799
http://dx.doi.org/10.1192/bjo.2022.593
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