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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

On each trial, participants select a card from one of four decks; two ‘bad’ decks offer a higher reward on most trials but also higher possible loss and lower overall expected value, whereas two ‘good’ 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.


Bechara's gambling task

Definition contributed by Anonymous
Iowa Gambling Task has been asserted to measure the following CONCEPTS
Phenotypes associated with Iowa Gambling Task


No associations have been added.


No associations have been added.


No associations have been added.

IMPLEMENTATIONS of Iowa Gambling Task
No implementations have been added.
EXTERNAL DATASETS for Iowa Gambling Task
No implementations have been added.

Experimental conditions are the subsets of an experiment that define the relevant experimental manipulation.


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.

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).


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

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

Insensitivity to future consequences following damage to human prefrontal cortex.
Bechara A, Damasio AR, Damasio H, Anderson SW
1994 Apr-Jun