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The Iowa gambling task or (IGT) is a psychological task thought to simulate real-life decision making. It was introduced by Antoine Bechara, Antonio Damasio, Hanna Damásio and Steven Anderson,〔 〕 then researchers at the University of Iowa. It has been brought to popular attention by António Damásio (proponent of the Somatic markers hypothesis) in his best-selling book ''Descartes' Error''.〔 ''Descartes' Error''〕 The task was originally presented simply as the ''Gambling Task'', or the "OGT". Later, it has been referred to as the Iowa Gambling Task and, less frequently, as Bechara's Gambling Task. The Iowa Gambling Task is widely used in research of cognition and emotion. A recent review listed more than 100 papers that made use of this paradigm.〔 ==Task structure== Participants are presented with 4 virtual decks of cards on a computer screen. They are told that each time they choose a card they will win some game money. Every so often, however, choosing a card causes them to lose some money. The goal of the game is to win as much money as possible. The decks differ from each other in the number of trials over which the losses are distributed. Thus, some decks are "bad decks", and other decks are "good decks", because some will lead to losses over the long run, and others will lead to gains. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Iowa gambling task」の詳細全文を読む スポンサード リンク
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