Click Start when ready. Click the panel when it turns green.
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Average
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Best
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Worst
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Rating
| Trial | Reaction time |
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Reaction Time Test
Visual reaction time measures how quickly you respond to a visual stimulus. It is one component of processing speed, which is related to cognitive performance and physical coordination.
- Average adult reaction time: 200–250 ms
- Athletes and gamers often average 150–190 ms with practice
- Reaction time worsens with fatigue, age, and alcohol consumption
- Click as soon as the panel turns green – clicking early is penalized