This is a test of visual spatial recognition memory in a 2-choice forced discrimination paradigm. This test is often used, in conjunction with Pattern Recognition Memory (PRM) , before the Paired Associates Learning (PAL) test, as both these tests help to train the participant for PAL. PRM and SRM contain different elements of PAL and the results considered together help to decide on the exact nature of the cognitive deficit being considered. The participant is presented with a white square, which appears in sequence at five different locations on the screen. In the recognition phase, the participant sees a series of five pairs of squares, one of which is in a place previously seen in the presentation phase. The other square is in a location not seen in the presentation phase. As with the PRM test, locations are tested in the reverse of the presentation order. This sub-test is repeated three more times, each time with five new locations
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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).
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