Choice reaction
+
Trial
0/20
Avg
—
Errors
0
Left/Right
0/0
Press Left or Right arrow matching the arrow shown, as fast as you can.
Simple reaction
Wait for green…
Trial
0/10
Avg
—
Best
—
False starts
0
Click or press Space when the screen turns green.
Saccades
Move only your eyes to follow the dot as it jumps left ↔ right.
Smooth pursuit
Track the moving dot smoothly with your eyes, not your head.
Bilateral visual
↔
Alternating left/right frames at gentle, low frequency. Avoid high flicker rates.
Stroop control
RED
Trial
0/30
Accuracy
—
Avg RT
—
Errors
0
Use keys R, G, B, Y to answer. Focus on the instructed dimension.
N-back memory
A
Trial
0/30
Hits
0
False alarms
0
Accuracy
—
Press Space if the current letter matches the one N steps back.
Peripheral awareness
•
Seen
0
Missed
0
Hit rate
—
Streak
0
Keep eyes on the center. Press Space when you detect a side flash.
Alertness screen
Daylight
Use in daytime only. At night, keep screens dim and warm to protect sleep.