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...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Cambridge University Press
2022-11-01
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| Series: | BJPsych Open |
| Subjects: | |
| Online Access: | https://www.cambridge.org/core/product/identifier/S2056472422005932/type/journal_article |
| _version_ | 1811156870419709952 |
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| author | Eva Schäflein Yoki Linn Mertens Nena Lejko Sarah Beutler Heribert Sattel Martin Sack |
| author_facet | Eva Schäflein Yoki Linn Mertens Nena Lejko Sarah Beutler Heribert Sattel Martin Sack |
| author_sort | Eva Schäflein |
| collection | DOAJ |
| 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. |
| first_indexed | 2024-04-10T04:58:16Z |
| format | Article |
| id | doaj.art-9f4a8304357e4d01a0c00cdb9b850be9 |
| institution | Directory Open Access Journal |
| issn | 2056-4724 |
| language | English |
| last_indexed | 2024-04-10T04:58:16Z |
| publishDate | 2022-11-01 |
| publisher | Cambridge University Press |
| record_format | Article |
| series | BJPsych Open |
| spelling | doaj.art-9f4a8304357e4d01a0c00cdb9b850be92023-03-09T12:29:24ZengCambridge University PressBJPsych Open2056-47242022-11-01810.1192/bjo.2022.593Altered frontal electroencephalography as a potential correlate of acute dissociation in dissociative disorders: novel findings from a mirror confrontation studyEva Schäflein0https://orcid.org/0000-0003-2380-4848Yoki Linn Mertens1https://orcid.org/0000-0002-2760-0896Nena Lejko2https://orcid.org/0000-0001-6339-1078Sarah Beutler3https://orcid.org/0000-0003-1512-0817Heribert Sattel4https://orcid.org/0000-0001-5378-4628Martin Sack5Department of Psychosomatic Medicine and Psychotherapy, University Hospital of Erlangen, Friedrich-Alexander University Erlangen-Nürnberg, Germany; and Department of Psychosomatic Medicine and Psychotherapy, Hospital rechts der Isar of the Technical University of Munich, GermanyDepartment of Clinical Psychology and Experimental Psychopathology, University of Groningen, The NetherlandsCognitive Neuroscience Center, Department of Biomedical Sciences of Cells & Systems, University Medical Center Groningen, University of Groningen, The NetherlandsDepartment of Psychotherapy and Psychosomatic Medicine, Medical Faculty, Technical University of Dresden, GermanyDepartment of Psychosomatic Medicine and Psychotherapy, Hospital rechts der Isar of the Technical University of Munich, GermanyDepartment of Psychosomatic Medicine and Psychotherapy, Hospital rechts der Isar of the Technical University of Munich, GermanyPeople 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.https://www.cambridge.org/core/product/identifier/S2056472422005932/type/journal_articleDissociative disorderselectroencephalographypost-traumatic stress disordermirrorself-perception |
| spellingShingle | Eva Schäflein Yoki Linn Mertens Nena Lejko Sarah Beutler Heribert Sattel Martin Sack Altered frontal electroencephalography as a potential correlate of acute dissociation in dissociative disorders: novel findings from a mirror confrontation study BJPsych Open Dissociative disorders electroencephalography post-traumatic stress disorder mirror self-perception |
| 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 | Dissociative disorders electroencephalography post-traumatic stress disorder mirror self-perception |
| url | https://www.cambridge.org/core/product/identifier/S2056472422005932/type/journal_article |
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