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Detached and distracted: ERP correlates of altered attentional function in depersonalisation

Schabinger, Nadine and Gillmeister, Helge and Berti, Stefan and Michal, Matthias and Beutel, Manfred E and Adler, Julia (2018) 'Detached and distracted: ERP correlates of altered attentional function in depersonalisation.' Biological Psychology, 134. 64 - 71. ISSN 0301-0511

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Abstract

Depersonalisation (DP) is a psychological condition marked by feelings of disembodiment. In everyday life, it is frequently associated with concentration problems. The present study used visual event-related potentials (ERPs) in a Posner-type spatial cueing task with valid, invalid and spatially neutral cues to delineate the potential neurophysiological correlates of these concentration problems. Altered attentional functioning at early, sensory stages was found in DP patients but not in anxiety- and depression-matched psychosomatic patients without DP. Specifically, DP was associated with decreased suppression of stimuli at unattended locations, shown as absent processing costs for invalidly versus neutrally cued stimuli over P1 (135–150 ms). Attentional benefits at N1, and all attentional effects at later, cognitive processing stages (P2-N2, P3) were similar in both groups. We propose that this insufficient early suppression of unattended stimuli may result from atypical sensory gain control in DP.

Item Type: Article
Uncontrolled Keywords: Depersonalisation; EEG; ERPs; Visual attention; Posner task; Spatial cueing
Subjects: B Philosophy. Psychology. Religion > BF Psychology
Divisions: Faculty of Science and Health > Psychology, Department of
Depositing User: Elements
Date Deposited: 13 Mar 2018 09:49
Last Modified: 24 Feb 2019 02:00
URI: http://repository.essex.ac.uk/id/eprint/21585

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