6533b829fe1ef96bd128a613
RESEARCH PRODUCT
Detached and distracted: ERP correlates of altered attentional function in depersonalisation.
Matthias MichalHelge GillmeisterNadine SchabingerStefan BertiJulia AdlerManfred E. Beutelsubject
AdultMalemedicine.medical_specialtySensory systemAudiologyElectroencephalography050105 experimental psychology03 medical and health sciences0302 clinical medicineCognitionmedicineReaction TimeVisual attentionHumans0501 psychology and cognitive sciencesAttentionEvoked PotentialsCued speechPsychiatric Status Rating Scalesmedicine.diagnostic_testGeneral Neuroscience05 social sciencesCognitionElectroencephalographyNeurophysiologyPsychophysiologic DisordersNeuropsychology and Physiological PsychologyDepersonalizationSpace PerceptionAnxietyFemalemedicine.symptomCuesPsychology030217 neurology & neurosurgeryPsychomotor Performancedescription
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.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2018-04-01 | Biological psychology |