Longevity Marker
Working Memory Assessment
The Digit Span Test is a standard tool used in research for over a century to assess working memory. You will watch sequences of numbers flash on screen and repeat them back — first in order, then in reverse.
5–8 min All Levels
How To Test
1
Forward Span
Watch a sequence of digits flash one at a time. When the sequence ends, enter what you saw — in the same order.
2
Backward Span
Same format — but now enter the digits in reverse order. If shown 7 – 4 – 2, answer 2 – 4 – 7.
Why It Matters
Working memory supports focus, learning, and reasoning. Tracking these spans over time reveals shifts in cognitive function.