One attempt per challenge. Finish each stage in order to unlock the next.
Complete 32 scored rounds. Every round counts.
Latest run
Challenge complete
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Each ability contributes equally to the Arena score.
FLK · Attention
Start 32 scored rounds directly. Respond only to the center arrow and ignore the surrounding arrows. Use the left / right buttons or arrow keys.
If you press before the center arrow appears, that trial counts as incorrect and the next trial follows. If you do not respond in time, it counts as a miss. Results stay on this device.
The main scores are your accuracy and median response time, measured withperformance.now(), reported separately for congruent and incongruent trials. Human Arena also reports an interference-cost difference (incongruent minus congruent median time) as an explanatory metric only.
Attention, fatigue, distraction, screen refresh rate, input hardware, and browser work can all shift a result. Treat the number as an entertainment and general-information measurement, not a medical, diagnostic, neurological, or IQ assessment.
Attention Test measures selective attention and inhibitory control: how well you respond to a target while ignoring nearby, conflicting information. It is a focused-attention task, not a measure of intelligence or overall ability.
On congruent trials the surrounding arrows point the same way as the center, so the correct response is easy to see. On incongruent trials they point the opposite way and compete for your attention. Most people are slightly slower and less accurate on incongruent trials.
This is a game result, not an IQ score or diagnosis. Read the scoring methods and measurement limits.
You respond to the direction of a center arrow while surrounding arrows either point the same way (congruent) or the opposite way (incongruent). It measures how well you keep focus under interference.
When the surrounding arrows point the opposite way, they pull your attention away from the center. Most people are a little slower and less accurate on those incongruent trials.
It is the difference between your median time on incongruent trials and congruent trials. It is shown only as an explanatory metric, not as a score or ranking.
No. Results vary with attention, fatigue, and device. It is an entertainment and general-information measurement, not a medical, neurological, or diagnostic assessment.
Choose another skill to practise as a separate test.
Respond to a central target while irrelevant neighboring stimuli agree or conflict.
Arrows replace the original letters. 32 scored rounds start directly, without a separate practice block. Accuracy supplies game points; interference time stays a descriptive result.
Overall and condition-specific accuracy, correct-response medians, interference difference, misses and early responses.
Research informs the task design. It does not validate this implementation, its game-point scales, or the five-ability profile. Read our methodology →