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Pattern Recognition Memory (PRM)

Pattern Recognition Memory is a test of visual pattern recognition memory in a 2-choice forced discrimination paradigm.

Administration time

4 minutes (including immediate and delayed recall)

Task format

The participant is presented with a series of visual patterns, one at a time, in the centre of the screen. These patterns are designed so that they cannot easily be given verbal labels. In the recognition phase, the participant is required to choose between a pattern they have already seen and a novel pattern. In this phase, the test patterns are presented in the reverse order to the original order of presentation. This is then repeated, with new patterns. The second recognition phase is administered after a delay period, typically 10-20 minutes.

Outcome measures

Outcome measures include the number and percentage of correct trials and latency (speed of participant’s response).

Normative data 

Please contact us to discuss your normative data requirements. Please note, we do not recommend using normative data in place of a control group. 

When to use this test

We would recommend using this test to assess cognitive function in: