Brainwave Entrainment, Explained

· Frequencies Explained · Ressonia Team

The frequency-following response

Expose the brain to a steady rhythmic stimulus and neural oscillations begin to align. This is called the frequency-following response, first documented in the 1960s.

The bands that matter

  • Beta (13–30 Hz) — alert, focused, sometimes anxious.

  • Alpha (8–12 Hz) — relaxed wakefulness. The "creative flow" band.

  • Theta (4–7 Hz) — deep meditation, vivid imagery, light sleep.

  • Delta (0.5–4 Hz) — restorative sleep.

How to use it

Binaural beats need headphones — they work by playing slightly different frequencies in each ear. Isochronic tones work through speakers.

Ten minutes is usually enough to shift state. The goal is gentle direction, not force.