Early emotional processing deficits in depersonalization: An exploration with event-related potentials in an undergraduate sample

C.W.E.M. Quaedflieg, T. Giesbrecht, E. Meijer, H. Merckelbach, P.J . de Jong, H. Thorsteinsson, T. Smeets, D. Simeon

Research output: Contribution to journalArticleAcademicpeer-review

2 Citations (Scopus)

Abstract

Emotional stimuli may draw attention to such an extent that they hamper the processing of subsequent signals, a phenomenon termed emotion-induced blindness (EIB). As depersonalization is associated with self-reported attenuated emotional responses, the present study explored whether individuals scoring high on the Cambridge Depersonalization Scale (CDS; n=15) exhibit a diminished EIB effect relative to low CDS scoring individuals (n=15), and whether attentional processes reflected in event-related potentials (ERPs) are implicated in this effect. We obtained an EIB effect such that emotional distractors that preceded targets with a lag of 200 ms reduced correct detection of targets. Although the magnitude of this effect was similar for high and low CDS participants, high CDS participants exhibited a significantly lower ERP amplitude at the frontal lead in the 200-300 ms window than did low CDS individuals to targets that followed emotional versus neutral distractors. This latter effect was significantly related to the Alienation factor of the CDS. This pattern suggests that difficulties in the discrimination between emotional and neutral stimuli relate to the feeling of unreality in depersonalization. 

Original languageEnglish
Pages (from-to)223-229
Number of pages7
JournalPsychiatry Research
Volume212
Issue number3
DOIs
Publication statusPublished - 30 Jun 2013

Keywords

  • Emotion-induced blindness (EIB)
  • Depersonalization symptoms
  • Rapid serial visual presentation (RSVP) paradigm
  • International Affective Picture System (IAPS)
  • COGNITIVE-PROCESSES
  • AUTONOMIC RESPONSE
  • ERP ANALYSIS
  • DISORDER
  • ATTENTION
  • DISSOCIATION
  • EXPERIENCES
  • PREVALENCE
  • VALIDATION
  • PICTURES

Cite this

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title = "Early emotional processing deficits in depersonalization: An exploration with event-related potentials in an undergraduate sample",
abstract = "Emotional stimuli may draw attention to such an extent that they hamper the processing of subsequent signals, a phenomenon termed emotion-induced blindness (EIB). As depersonalization is associated with self-reported attenuated emotional responses, the present study explored whether individuals scoring high on the Cambridge Depersonalization Scale (CDS; n=15) exhibit a diminished EIB effect relative to low CDS scoring individuals (n=15), and whether attentional processes reflected in event-related potentials (ERPs) are implicated in this effect. We obtained an EIB effect such that emotional distractors that preceded targets with a lag of 200 ms reduced correct detection of targets. Although the magnitude of this effect was similar for high and low CDS participants, high CDS participants exhibited a significantly lower ERP amplitude at the frontal lead in the 200-300 ms window than did low CDS individuals to targets that followed emotional versus neutral distractors. This latter effect was significantly related to the Alienation factor of the CDS. This pattern suggests that difficulties in the discrimination between emotional and neutral stimuli relate to the feeling of unreality in depersonalization. ",
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author = "C.W.E.M. Quaedflieg and T. Giesbrecht and E. Meijer and H. Merckelbach and {de Jong}, {P.J .} and H. Thorsteinsson and T. Smeets and D. Simeon",
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Early emotional processing deficits in depersonalization: An exploration with event-related potentials in an undergraduate sample. / Quaedflieg, C.W.E.M.; Giesbrecht, T.; Meijer, E.; Merckelbach, H.; de Jong, P.J .; Thorsteinsson, H.; Smeets, T.; Simeon, D.

In: Psychiatry Research, Vol. 212, No. 3, 30.06.2013, p. 223-229.

Research output: Contribution to journalArticleAcademicpeer-review

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T1 - Early emotional processing deficits in depersonalization: An exploration with event-related potentials in an undergraduate sample

AU - Quaedflieg, C.W.E.M.

AU - Giesbrecht, T.

AU - Meijer, E.

AU - Merckelbach, H.

AU - de Jong, P.J .

AU - Thorsteinsson, H.

AU - Smeets, T.

AU - Simeon, D.

PY - 2013/6/30

Y1 - 2013/6/30

N2 - Emotional stimuli may draw attention to such an extent that they hamper the processing of subsequent signals, a phenomenon termed emotion-induced blindness (EIB). As depersonalization is associated with self-reported attenuated emotional responses, the present study explored whether individuals scoring high on the Cambridge Depersonalization Scale (CDS; n=15) exhibit a diminished EIB effect relative to low CDS scoring individuals (n=15), and whether attentional processes reflected in event-related potentials (ERPs) are implicated in this effect. We obtained an EIB effect such that emotional distractors that preceded targets with a lag of 200 ms reduced correct detection of targets. Although the magnitude of this effect was similar for high and low CDS participants, high CDS participants exhibited a significantly lower ERP amplitude at the frontal lead in the 200-300 ms window than did low CDS individuals to targets that followed emotional versus neutral distractors. This latter effect was significantly related to the Alienation factor of the CDS. This pattern suggests that difficulties in the discrimination between emotional and neutral stimuli relate to the feeling of unreality in depersonalization. 

AB - Emotional stimuli may draw attention to such an extent that they hamper the processing of subsequent signals, a phenomenon termed emotion-induced blindness (EIB). As depersonalization is associated with self-reported attenuated emotional responses, the present study explored whether individuals scoring high on the Cambridge Depersonalization Scale (CDS; n=15) exhibit a diminished EIB effect relative to low CDS scoring individuals (n=15), and whether attentional processes reflected in event-related potentials (ERPs) are implicated in this effect. We obtained an EIB effect such that emotional distractors that preceded targets with a lag of 200 ms reduced correct detection of targets. Although the magnitude of this effect was similar for high and low CDS participants, high CDS participants exhibited a significantly lower ERP amplitude at the frontal lead in the 200-300 ms window than did low CDS individuals to targets that followed emotional versus neutral distractors. This latter effect was significantly related to the Alienation factor of the CDS. This pattern suggests that difficulties in the discrimination between emotional and neutral stimuli relate to the feeling of unreality in depersonalization. 

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KW - COGNITIVE-PROCESSES

KW - AUTONOMIC RESPONSE

KW - ERP ANALYSIS

KW - DISORDER

KW - ATTENTION

KW - DISSOCIATION

KW - EXPERIENCES

KW - PREVALENCE

KW - VALIDATION

KW - PICTURES

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DO - 10.1016/j.pscychresns.2012.08.001

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EP - 229

JO - Psychiatry Research

JF - Psychiatry Research

SN - 0165-1781

IS - 3

ER -