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Relations between a computerized shopping task and cognitive tests in a group of persons diagnosed with schizophrenia compared with healthy controls

Published online by Cambridge University Press:  10 November 2009

FRANK LARØI ,
JENNIFER CANLAIRE ,
HAITHAM MOURAD  and
MARTIAL VAN DER LINDEN
FRANK LARØI*
Affiliation:
Cognitive Psychopathology Unit, University of Liège, Liège, Belgium Intercommunale de Soins Spécialisés de Liège (Mental Health Sector), Liège, Belgium
JENNIFER CANLAIRE
Affiliation:
Cognitive Psychopathology Unit, University of Liège, Liège, Belgium
HAITHAM MOURAD
Affiliation:
Cognitive Psychopathology Unit, University of Liège, Liège, Belgium
MARTIAL VAN DER LINDEN
Affiliation:
Cognitive Psychopathology Unit, University of Liège, Liège, Belgium Cognitive Psychopathology and Neuropsychology Unit, University of Geneva, Geneva, Switzerland
*
*Correspondence and reprint requests to: Frank Larøi, Cognitive Psychopathology Unit, Department of Cognitive Sciences, University of Liège, Bd. du Rectorat (B33), B-4000 Liège, Belgium. E-mail: [email protected]
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Abstract

Cognitive deficits are clearly associated with poor everyday life functioning in persons diagnosed with schizophrenia. However, previous studies have primarily used questionnaires to assess everyday life functioning. We developed a computerized real-life activity task (shopping task), where participants are required to shop for a list of seven grocery store items. Thirty individuals diagnosed with schizophrenia and 30 healthy controls were administered an extensive battery of cognitive tests and the computerized shopping task. Performances on the computerized shopping task significantly differentiated patients and healthy controls for several variables. Moreover, performance on the shopping task was significantly correlated with verbal episodic memory, cognitive flexibility, planning, processing speed, and inhibition. Finally, performance on the computerized shopping task was significantly correlated with various clinical variables and with a global measure of social functioning. These findings suggest that the computerized task used in the present study provides an indication of the level of everyday life functioning and cognitive functioning of persons diagnosed with schizophrenia, and, therefore, may be viewed as a valuable instrument in both an evaluation and remediation context. (JINS, 2010, 16, 180–189.)

Keywords

Everyday life activitiesNeuropsychologyEcological validityNeurocognitionSocial functioningComputerized
Type
Research Articles
Information
Journal of the International Neuropsychological Society , Volume 16 , Issue 1 , January 2010 , pp. 180 - 189
Copyright
Copyright © The International Neuropsychological Society 2009

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