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Deficit in decision making in catatonic schizophrenia: An exploratory study

Bark, Raiko, Dieckmann, Silvia, Bogerts, Bernhard, Northoff, Georg·2005·Psychiatry Research
DOI 10.1016/j.psychres.2004.04.013
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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.

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Research works printed but not linked: 31

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Metadata

Authors
Bark, R., Dieckmann, S., Bogerts, B., & Northoff, G.
Venue
Psychiatry Research
Publisher
Elsevier BV
Published
2005-04
Volume
134
Issue
2
Pages
131-141
ISSN
0165-1781
DOI
10.1016/j.psychres.2004.04.013
Cited by
62
References
4
Language
en
Licence
www.elsevier.com/tdm/userlicense/1.0/ (tdm)

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