Decision-making deficits of Korsakoff patients in a new gambling task with explicit rules: Associations with executive functions. Entscheidungsfindungsdefizite von Korsakoff-Patienten bei einer neuen Gluecksspielaufgabe mit expliziten Regeln: Beziehungen zu exekutiven Funktionen.
In: Neuropsychology, Jg. 19 (2005) ; Nr. 3, S. 267-277
Zeitschriftenaufsatz / Fach: Angewandte Kognitionswissenschaften
Fakultät für Ingenieurwissenschaften » Informatik und Angewandte Kognitionswissenschaft
Decision-making deficits reflected by risky decisions in gambling tasks have been associated with frontal lobe dysfunctions in various neurologic and psychiatric populations. The question remains whether decision-making impairments are related to executive functions. The authors developed a new gambling task, the Game of Dice Task, with explicit and stable rules for reinforcement and punishment, to investigate relations between executive functions and risk-taking behavior in an explicit decision-making situation. A sample of 35 alcoholic Korsakoff patients and 35 healthy controls was examined with the Game of Dice Task and a neuropsychological test battery. Results show that Korsakoff patients are strongly impaired in this explicit decision-making task and that these disturbances are correlated with specific executive functions.