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Corsi block-tapping test
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<p>The Corsi block-tapping test is a <a href="/facts/Psychological_testing/XexnaLqD">psychological test</a> that assesses <a href="/facts/Visual-spatial_ability/afTGh9GW">visuo-spatial</a> <a href="/facts/Short_term_memory/xaFod2bp">short term working memory</a>. It involves mimicking a researcher as they tap a sequence of up to nine identical spatially separated blocks. The sequence starts out simple, usually using two blocks, but becomes more complex until the subject's performance suffers. This number is known as the <i>Corsi Span</i>, and average is about 5–6 for typically 'normal' human subjects. </p>