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This test measures speed of processing by asking participants to discern whether two sideby-side pictures are the same or not. The items are presented one pair at a time on the computer screen, and the participant is given 90 seconds to respond to as many items as possible (up to a maximum of 130). The items are designed to be simple so as to most purely measure processing speed.


NIH Toolbox Pattern Comparison Processing Speed Test

Definition contributed by Anonymous
pattern comparison task has been asserted to measure the following CONCEPTS
as measured by the contrast:

Phenotypes associated with pattern comparison task


No associations have been added.


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IMPLEMENTATIONS of pattern comparison task
No implementations have been added.
EXTERNAL DATASETS for pattern comparison 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.


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).