Iowa gambling task in schizophrenia: a review and new data in patients with schizophrenia and co-occurring cannabis use disorders.

ABSTRACT:

Background

We reviewed previous studies comparing schizophrenia patients and healthy subjects for performance on the Iowa Gambling Task (IGT) (a laboratory task designed to measure emotion-based decision-making), and found mixed results. We hypothesize that deficits in IGT performance in schizophrenia may be more specifically related to concurrent substance use disorders. To test this hypothesis, we compared schizophrenia patients with (SCZ((+))) or without (SCZ((-))) cannabis use disorders, to healthy subjects, on measures of cognition and IGT performance.

Methods

A comprehensive battery of cognitive tests and the IGT were administered to three groups of subjects: (1) 13 subjects with DSM-IV diagnosis of schizophrenia and no concurrent substance use disorders (mean age: 28+

SUBMITTER: Sevy S 

PROVIDER: S-EPMC2039912 | biostudies-literature | 2007 May

REPOSITORIES: biostudies-literature