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Spatial Span (SSP)

Spatial Span assesses visuospatial working memory capacity. 

Administration time

5 minutes

Task format

White squares are shown on the screen, some of which briefly change colour in a variable sequence. The participant must then select the boxes which changed colour in the same order that they were displayed by the computer (for the forward variant) or in the reverse order (for backward variant). The number of boxes in the sequence increases from two at the start of the test, to nine at the end and the sequence and colour are varied through the test.

Outcome measures

Outcome measures cover span length (the longest sequence successfully recalled), errors, number of attempts and latency (speed of 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: