Brain Waves

Wave TypeFrequency Range (Hz)Property
Gamma30-100Awareness
Beta13-30Alertness
SMR (Sensorimotor Rhythm)12.5-15.5Idleness
Alpha8-12Relaxed
Mu7.5-12.5Voluntary Movement
Theta4-7Tired
Delta1-3Sleep

Notes

  • When recording EEG signals, we have to be aware of the frequency range we're trying to target