Choose the right response
Wait for a cue, make the right decision, then review the whole run.
Left arrow: choose Left. Right arrow: choose Right.
Use Left and Right arrow keys, or the buttons. Tab hides and focus loss discard the run.
Your run
Scoring method: 2026-09-19.2. How this score works
Speed with the right response
A matching response records its cue-to-input time. A wrong direction is a wrong choice; a cue with no answer is an omission.
The run contains 12 cues with equal counts of each type in shuffled order. Each cue stays for up to 2 seconds. An early press retries that cue and does not consume a round.
Compare your own decisions
The headline counts correct decisions. The median uses correct response times only, so mistakes remain visible beside speed. Compare the same challenge on the same device. This is a game, with no cognitive or medical interpretation.
For a cue without a choice, use the simple reaction test. See the timing and scoring rules.
Try the related task
- Reaction time test: Respond to randomized cues, catch false starts, see every attempt plus median and best, then share or retry.
- Go/No-Go test: Respond to GO and hold back on STOP. Review correct responses, missed cues and false presses, then try again.
- Memory hub: Try sequence, visual, number, word and number-order memory tests, then compare your own bests and choose the next challenge.