Are impairments of action monitoring and executive control true dissociative dysfunctions in patients with schizophrenia?

And U. Turken, Patrik Vuilleumier, Daniel H. Mathalon, Diane Swick, Judith M. Ford

Research output: Contribution to journalArticle

57 Scopus citations

Abstract

Objective: Impaired self-monitoring is considered a critical deficit of schizophrenia. The authors asked whether this is a specific and isolable impairment or is part of a global disturbance of cognitive and attentional functions. Method: Internal monitoring of erroneous actions, as well as three components of attentional control (conflict resolution, set switching, and preparatory attention) were assessed during performance of a single task by eight high-functioning patients with schizophrenia and eight comparison subjects. Results: The patients exhibited no significant dysfunction of attentional control during task performance. In contrast, their ability to correct errors without external feedback and, by inference, to self-monitor their actions was markedly compromised. Conclusions: This finding suggests that dysfunction of self-monitoring in schizophrenia does not necessarily reflect a general decline in cognitive function but is evidence of disproportionately pronounced impairment of action monitoring, which may be mediated by a distinct subsystem within the brain's executive attention networks.

Original languageEnglish (US)
Pages (from-to)1881-1883
Number of pages3
JournalAmerican Journal of Psychiatry
Volume160
Issue number10
DOIs
StatePublished - Oct 2003

ASJC Scopus subject areas

  • Psychiatry and Mental health

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