Reaction Dot
Test your reaction speed. Three modes: simple, choice, Stroop color interference.
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How to play
Three modes each test a different reaction capability:
- Simple reaction: Wait on the red screen, click immediately when it turns green. Tests pure "see → act" reaction. Normal: 200-300ms, athletes: 150-200ms.
- Choice reaction: Screen turns into one of several colors; you must click the specific color shown for it to count. Tests "identify + select + act" composite reaction. 50-100ms slower than simple.
- Stroop interference: Screen shows a word (e.g., "RED") with its actual color possibly different (green-colored "RED"). You must click the button matching the displayed color — the text content is a distractor. Tests inhibitory control.
About Stroop
Invented by John Ridley Stroop in 1935; a classic psychology test. Healthy adults are 100-200ms slower on Stroop than simple choice. Evidence that the prefrontal inhibition system is at work.
Notes
Clicking before the green appears counts as an "early click" — yellow warning. Best score is taken from your last 5 rounds.
Originality
Reaction-test paradigms are public-domain (widely used in neuroscience). Visuals, UI, and timing implementation here are BverGame original.