Raw Reaction Time
Levels 1–20 Central • 21–40 Spatial • 25 trials/level • ≥500ms visibility
How to Play
• A purple circle appears — tap/click it as fast as you can.
• False taps before the stimulus are penalized (anti-anticipation).
• Minimum valid RT is 120ms; the stimulus never disappears in under 500ms.
• False taps before the stimulus are penalized (anti-anticipation).
• Minimum valid RT is 120ms; the stimulus never disappears in under 500ms.
EYES IN ACTION
Rapid stimulus detection and clean foveal acquisition. Central trials at fixation; spatial trials demand quick peripheral orienting and accurate landing.
BRAIN SYSTEMS
Retina → LGN (M) → V1/V2 for transients; SC/FEF for orienting/trigger timing; LC–NE alerting; PMC/M1 with BG/cerebellum for fast initiation/timing.
SPORT TRANSFER
Pure “see–go” speed: starts/face-offs, first-move goalkeeper actions, initial pitch/serve pickup, first defensive step, blocks/gun reactions.