How the task works
Keep the previous symbol active, compare it with the current one, answer, and replace the remembered item. Longer sessions add sustained-attention demands.
Compare each symbol with the one immediately before it and answer without losing your rhythm.
Longer sessions demand steadier working memory.
Speed Match is a one-back task: for each symbol, decide whether it matches the symbol immediately before it. The task combines continuous updating with a speeded same-or-different response.
Keep the previous symbol active, compare it with the current one, answer, and replace the remembered item. Longer sessions add sustained-attention demands.
The n-back paradigm originated in research on rapidly changing information. Construct-validity work also shows that n-back and traditional working-memory span are not interchangeable, so the page avoids calling this a universal working-memory test.
Accuracy and pace describe this one-back format. Practice effects, guessing strategy, motor speed, and device latency mean scores should not be treated as a broad processing-speed or intelligence measure.
These papers support the task paradigm and how researchers interpret it. They do not prove that this web game diagnoses a condition or produces broad, lasting cognitive improvement.
Keep the previous symbol active, compare it with the current one, answer, and replace the remembered item. Longer sessions add sustained-attention demands.
Accuracy and pace describe this one-back format. Practice effects, guessing strategy, motor speed, and device latency mean scores should not be treated as a broad processing-speed or intelligence measure.
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