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Subject generate vivid images of objects, places, concepts, hypothetical events (not in their past), or the completion of tasks.

Definition contributed by Anonymous
Phenotypes associated with imagined objects/scenes


No associations have been added.


No associations have been added.


No associations have been added.

IMPLEMENTATIONS of imagined objects/scenes
No implementations have been added.
EXTERNAL DATASETS for imagined objects/scenes
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.

subject's physical representation of imagined object
areas of activation
response time to questions about objects/scenes

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).


Visual imagery and visual representation.
Roland PE, Gulyás B
(Trends Neurosci)
1994 Jul