Delta Waves are high-amplitude, slow brain oscillations (0.5–4 Hz) characteristic of deep sleep (slow-wave sleep, N3). They are associated with restorative processes, memory consolidation, and glymphatic clearance.
Key Points
- •Deep sleep marker — predominance of delta indicates SWS
- •Amplitude — high amplitude correlates with sleep depth
- •Stimulation — phase-locked acoustic stimulation can enhance delta amplitude
- •Bone conduction — sound via skull can stimulate without waking
In ONDA Life
The Phase-Locked Sleep article covers delta wave amplification using phase-locked acoustic stimulation.