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Problem solving in schizophrenia: a specific deficit in planning ability.

Morris, R G, Rushe, T, Woodruffe, P W and Murray, R M (1995) Problem solving in schizophrenia: a specific deficit in planning ability. Schizophrenia research, 14 (3). pp. 235-46. [Journal article]

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The study investigated problem solving ability in schizophrenia. Thirty DSM-IIIR schizophrenic patients and 27 matched normal controls were tested on the Three-Dimensional Computerised Tower of London Test (3-D CTL Test) (Morris et al., 1993). The patients took significantly more moves to solve a series of problems and solved significantly fewer problems in the predetermined minimum number of moves. The patients response times, as measured using a control version of the task (the 3-D CTL Control), were longer than those of the controls. However, when latencies were adjusted to take into account the slower responses overall, the patients planning times were not significantly increased. Inaccurate planning, as defined by taking more moves, did not correlate with either positive or negative symptoms, but the response times tended to be longer in patients who had more negative symptoms. The findings suggest that there is a deficit in problem solving activity in schizophrenia that may be associated with translating 'willed intentions' into action, independent of slower motor speed.

Item Type:Journal article
Faculties and Schools:Faculty of Life and Health Sciences
Faculty of Life and Health Sciences > School of Psychology
ID Code:21278
Deposited By: Dr Teresa Rushe
Deposited On:21 Mar 2012 11:03
Last Modified:21 Mar 2012 11:05

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