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The subject is presented with an array, then after a short delay, presented with a second array. In the no-change condition, the second array is identical to the first. In the change condition, the second array differs by a single item. Subjects must identify whether a change has occurred or not, and if so, are often asked to point out the change. Other versions target different sensory abilities, such as auditory change detection or face change detection.

Definition contributed by Anonymous
Change Detection Task has been asserted to measure the following CONCEPTS
as measured by the contrast:

as measured by the contrast:

Phenotypes associated with Change Detection Task


No associations have been added.


No associations have been added.


No associations have been added.

IMPLEMENTATIONS of Change Detection Task
No implementations have been added.
EXTERNAL DATASETS for Change Detection Task
No implementations have been added.

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.

response time

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).


Semantic consistency versus perceptual salience in visual scenes: findings from change detection.
Spotorno S, Tatler BW, Faure S
Acta psychologica (Acta Psychol (Amst))
2013 Feb

Working Memory Inefficiency: Minimal Information Is Utilized in Visual Recognition Tasks.
Chen Z, Cowan N
Journal of experimental psychology. Learning, memory, and cognition (J Exp Psychol Learn Mem Cogn)
2013 Feb 18