Iowa Gambling Task
Unreviewed
a widely used experiment in the areas of cognition & emotion that was originally developed to assist in detecting decision-making impairment in patients with prefrontal cortex damage; a computerized experiment that is carried out in real time and resembles real-world contingencies. The task allows participants to select cards from four decks displayed on-screen. Participants are instructed that the selection of each card will result in winning or losing money. The objective is to attempt to win as much money as possible. (from http://iowagamblingtask.com/)
On each trial, participants select a card from one of four decks; two âbadâ decks offer a higher reward on most trials but also higher possible loss and lower overall expected value, whereas two âgoodâ decks offer a lower reward on most trials but lower possible loss and higher expected value. Participants learn the nature of the decks through trial-and- error. In some versions of the task, the probabilities are not stationary.
Definition contributed by Anonymous
On each trial, participants select a card from one of four decks; two âbadâ decks offer a higher reward on most trials but also higher possible loss and lower overall expected value, whereas two âgoodâ decks offer a lower reward on most trials but lower possible loss and higher expected value. Participants learn the nature of the decks through trial-and- error. In some versions of the task, the probabilities are not stationary.
Alias(es)
Bechara's gambling taskDefinition contributed by Anonymous
Iowa Gambling Task has been asserted to measure the following CONCEPTS
Phenotypes associated with Iowa Gambling Task
Disorders
No associations have been added.Traits
No associations have been added.Behaviors
No associations have been added. CONDITIONS
Experimental conditions are the subsets of an experiment that define the relevant experimental manipulation.
CONTRASTS
You must specify conditions before you can define contrasts.
In the Cognitive Atlas, we define a contrast as any function over experimental conditions. The simplest contrast is the indicator value for a specific condition; more complex contrasts include linear or nonlinear functions of the indicator across different experimental conditions.
INDICATORS
BOLD activity
response time
money earned
% of cards picked from advantageous decks
An indicator is a specific quantitative or qualitative variable that is recorded for analysis. These may include behavioral variables (such as response time, accuracy, or other measures of performance) or physiological variables (including genetics, psychophysiology, or brain imaging data).
Term BIBLIOGRAPHY
Decision making and response inhibition as predictors of heavy alcohol use: a prospective study.
Goudriaan AE, Grekin ER, Sher KJ
Alcoholism, clinical and experimental research (Alcohol Clin Exp Res)
2011 Jun
Goudriaan AE, Grekin ER, Sher KJ
Alcoholism, clinical and experimental research (Alcohol Clin Exp Res)
2011 Jun
Distinct roles of prefrontal cortical subregions in the Iowa Gambling Task.
Lawrence NS, Jollant F, O'Daly O, Zelaya F, Phillips ML
Cerebral cortex (New York, N.Y. : 1991) (Cereb Cortex)
2009 May
Lawrence NS, Jollant F, O'Daly O, Zelaya F, Phillips ML
Cerebral cortex (New York, N.Y. : 1991) (Cereb Cortex)
2009 May
Insensitivity to future consequences following damage to human prefrontal cortex.
Bechara A, Damasio AR, Damasio H, Anderson SW
(Cognition)
1994 Apr-Jun
Bechara A, Damasio AR, Damasio H, Anderson SW
(Cognition)
1994 Apr-Jun
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