Cognitive games · visuospatial span
Tap them back in the order they lit.
Nine blocks. They light up one at a time. When the sequence stops, tap them back in the same order. The sequence grows by one each round until you miss.
Press Start. Watch the sequence.
Round complete.
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Max span — Successful rounds —How it works. Standard Corsi block-tapping task — used since 1972 to measure visuospatial working memory. Typical adult span is 5–7 blocks. ADHD adults often score 4–5; lower in tired or stimulant-off states. The number is a snapshot, not a diagnosis — it varies more by sleep + medication than by anything else.