Neural Hardware

Phase-Locked

Synchronizing an external signal (sound) with an internal biological rhythm (brain waves).

Phase-Locked stimulation means synchronizing an external stimulus (e.g., sound, light) with the phase of an internal biological oscillation (e.g., slow-wave sleep, delta waves). The external signal "locks" to the internal rhythm to amplify or entrain it.

Key Applications

  • Sleep — acoustic stimulation phase-locked to slow-wave sleep can enhance delta amplitude
  • EEG — frequency-following response to binaural beats
  • Precision — requires real-time detection of the internal rhythm (e.g., via EEG or actigraphy)

In ONDA Life

The Phase-Locked Sleep article covers delta amplification protocols using phase-locked acoustic stimulation.