Deficit in decision making in catatonic schizophrenia: An exploratory study

Raiko Bark, Silvia Dieckmann, Bernhard Bogerts, Georg Northoff

Research output: Contribution to journalArticle

55 Citations (Scopus)

Abstract

Catatonic schizophrenia can be distinguished from paranoid schizophrenia by prominent behavioral and motor anomalies. As demonstrated in recent imaging studies, behavioral symptoms may be related to dysfunction in the ventral prefrontal cortex. However, the neuropsychological correlates of ventral prefrontal cortical dysfunction remain unclear. In an exploratory study, we investigated eight patients with catatonic schizophrenia and compared them with 19 patients with paranoid schizophrenia and 26 healthy subjects. The Iowa Gambling Task (IGT) and the Object Alternation Task (OAT) served as measures of ventral prefrontal cortical function. In addition, other prefrontal cortical tests such as a visual working memory task, a Go-NoGo task, and the Wisconsin Card Sorting Test, as well as attentional tasks, were included in the test battery. Catatonic patients showed significant deficits in the IGT characterized by an inability to shift from the initial preference for high-risk cards to a more advantageous strategy with low-risk cards. Moreover, catatonic patients showed significant deficits in the OAT. In conclusion, our preliminary results suggest a specific deficit in catatonic schizophrenia in those neuropsychological measures that are associated with ventral prefrontal cortical function.

Original languageEnglish
Pages (from-to)131-141
Number of pages11
JournalPsychiatry Research
Volume134
Issue number2
DOIs
Publication statusPublished - Apr 15 2005

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Catatonic Schizophrenia
Decision Making
Paranoid Schizophrenia
Gambling
Behavioral Symptoms
Prefrontal Cortex
Short-Term Memory
Healthy Volunteers

Keywords

  • Behavioral anomalies
  • Catatonia
  • Dorsolateral prefrontal cortex
  • Iowa gambling task
  • Ventral prefrontal cortex

ASJC Scopus subject areas

  • Psychiatry and Mental health
  • Biological Psychiatry
  • Psychology(all)

Cite this

Deficit in decision making in catatonic schizophrenia : An exploratory study. / Bark, Raiko; Dieckmann, Silvia; Bogerts, Bernhard; Northoff, Georg.

In: Psychiatry Research, Vol. 134, No. 2, 15.04.2005, p. 131-141.

Research output: Contribution to journalArticle

Bark, Raiko ; Dieckmann, Silvia ; Bogerts, Bernhard ; Northoff, Georg. / Deficit in decision making in catatonic schizophrenia : An exploratory study. In: Psychiatry Research. 2005 ; Vol. 134, No. 2. pp. 131-141.
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