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Dual N-Back

You’ll see a square flash in a 3×3 grid, and (optionally) hear a sound. Report whether the current stimulus matches the one N steps back. Hits and false alarms both count — this is attention discipline, not button-mashing.

How to play
  • Position Match: press L when the square matches N trials ago.
  • Audio Match: press A when the sound/letter matches N trials ago.
  • Only press when you mean it — false alarms matter.
What it trains
  • Working memory: update and hold information under load.
  • Attention control: avoid impulse presses, stay consistent.
  • Dual-task coordination: manage visual + audio streams.
A audio • L position • Space start

Training
Read the overview, then begin.
Session 00:00
Level N=2
Trial 0/0
Targets
Press only when the current stimulus matches N steps back in that modality.