Experimental conditions are the subsets of an experiment that define the relevant experimental manipulation.
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).
"This task and its attributes were duplicated from Ultimatum Game (UG) on April 27, 2015."
VSochat (about two years ago)
Definition contributed by VSochat about two years ago:This is an instantiation of the Ultimatum Game (UG) in fMRI. In this game, a proposer is charged with splitting a sum of money with a partner. The responder decides either to accept or reject this proposed offer. If accepted, the money is split as suggested, but if rejected then neither player receives anything. The parterns can be a combination of real people, computers. Offers are preceded by a picture of the partner for that round, and partner pictures are randomly paired to an offer amount. Full details of the task are available: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3594719/REVISION 1
Definition contributed by VSochat about two years ago:A social interactive bargaining task that measures social preferences via the degree to which participants accept unfair and unequal offers. https://en.wikipedia.org/wiki/Ultimatum_gameView Term Event Log
Chang LJ, Sanfey AG
Social cognitive and affective neuroscience (Soc Cogn Affect Neurosci)
Citation added by VSochat about two years ago