2008
DOI: 10.1186/1744-9081-4-13
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Immediate gain is long-term loss: Are there foresighted decision makers in the Iowa Gambling Task?

Abstract: Background: The Somatic Marker Hypothesis suggests that normal subjects are "foreseeable" and ventromedial prefrontal patients are "myopic" in making decisions, as the behavior shown in the Iowa Gambling Task. The present study questions previous findings because of the existing confounding between long-term outcome (expected value, EV) and gain-loss frequency variables in the Iowa Gambling Task (IGT). A newly and symmetrically designed gamble, namely the Soochow Gambling Task (SGT), with a high-contrast EV be… Show more

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Cited by 92 publications
(155 citation statements)
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“…The crucial difference with crossvalidation is that in the generalization criterion method, the training set and the test set do not overlap in terms of experimental design. For instance, Ahn, Busemeyer, Wagenmakers, and Stout (2008) compared several models of reinforcement learning by fitting them to one experiment (e.g., the Iowa gambling task; Bechara, Damasio, Damasio, & Anderson, 1994) and evaluating them on a different experiment (e.g., the Soochow gambling task; Chiu et al, 2005).…”
Section: The Generalization Criterion Methodsmentioning
confidence: 99%
“…The crucial difference with crossvalidation is that in the generalization criterion method, the training set and the test set do not overlap in terms of experimental design. For instance, Ahn, Busemeyer, Wagenmakers, and Stout (2008) compared several models of reinforcement learning by fitting them to one experiment (e.g., the Iowa gambling task; Bechara, Damasio, Damasio, & Anderson, 1994) and evaluating them on a different experiment (e.g., the Soochow gambling task; Chiu et al, 2005).…”
Section: The Generalization Criterion Methodsmentioning
confidence: 99%
“…In contrast, in the SGT, although advantageous decks have the same average expected values as those in the IGT, normal decision makers (young healthy adults) were unable to learn which decks are good decks and, therefore, lost money (Chiu et al, 2008). In this study, the same data patterns were replicated using a within-subjects design, and the data sets were used to further evaluate decision learning models.…”
Section: Experiments and Basic Findingsmentioning
confidence: 98%
“…Therefore, a growing number of studies recommend considering gain-loss frequency score (GLF score; e.g. Chiu et al, 2008), calculated by subtracting the number of choices from the low-loss frequency decks (B + D) and the high-loss frequency decks (A + C) (e.g. Lin, Song, Chen, Lee, & Chiu, 2013).…”
Section: Introductionmentioning
confidence: 99%