Iowa Gambling Task
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
DisordersNo associations have been added.
TraitsNo associations have been added.
BehaviorsNo associations 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.
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).
Goudriaan AE, Grekin ER, Sher KJ
Alcoholism, clinical and experimental research (Alcohol Clin Exp Res)
Lawrence NS, Jollant F, O'Daly O, Zelaya F, Phillips ML
Cerebral cortex (New York, N.Y. : 1991) (Cereb Cortex)
Bechara A, Damasio AR, Damasio H, Anderson SW