STROBONAUT — WEB

Photosensitive epilepsy warning. This screen flashes rhythmically. Do not proceed if you or anyone in your family has a history of epilepsy or seizures.

Prepare your phone

  • Auto-rotate on. The display must lie in landscape so the two fields fall across your left and right eyes.
  • Brightness to maximum. A dim screen will not produce entrainment.
  • Screen timeout extended or off. This page tries to hold the screen awake, but not all phones allow it. On iPhone in particular, set it manually.
  • Silence notifications. Do Not Disturb, or flight mode with Wi-Fi left on.
  • Mount the phone in your headset before tapping Start, and settle yourself comfortably.
Left and right hemifields alternate red and black.
Frequency sweeps 12 Hz → 6 Hz → 12 Hz, one minute per cycle.
Tap the screen at any time to end the session.
Tap anywhere to end the session