Neuropsychological correlates of decision-making in ambiguous and risky situations

被引：389

作者：

Brand, Matthias ^{[1
]}

Labudda, Kirsten ^{[1
]}

Markowitsch, Hans J. ^{[1
]}

机构：

[1] Univ Bielefeld, Dept Physiol Psychol, D-33501 Bielefeld, Germany

来源：

NEURAL NETWORKS | 2006年 / 19卷 / 08期

关键词：

gambling; executive functions; feedback processing; dorsolateral prefrontal cortex; orbitofrontal cortex;

D O I：

10.1016/j.neunet.2006.03.001

中图分类号：

TP18 [人工智能理论];

学科分类号：

081104 ; 0812 ; 0835 ; 1405 ;

摘要：

Decision-making situations in real life differ regarding their explicitness of positive and negative consequences as well as regarding the directness of probabilities for reward and punishment. In neuropsychological research, decisions under ambiguity and decisions under risk are differentiated. To assess decisions under ambiguity the Iowa Gambling Task (IGT) is one of the most frequently used tasks. Decisions under risk can be measured by a task that offers explicit rules for gains and losses and stable winning probabilities, as the Game of Dice Task (GDT) does. In this contribution we firstly summarize studies that investigated decision-making in various groups of patients using the IGT or the GDT. We also propose a new model of decision-making in risky situations and describe differences between decisions under ambiguity and decisions under risk from a theoretical and clinical perspective. (c) 2006 Elsevier Ltd. All rights reserved.

引用

页码：1266 / 1276

页数：11

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