Training Specific Bands I’m careful about trying to train down just a narrow frequency band (i.e. just delta). It’s very possible to reduce delta and increase theta or even (if there is dissociation involved) high beta. Squashes and windowed squashes are a good alternative in that they allow you to put a ceiling on a wide range of frequencies without necessarily training to increase anything. When the brain reduces amplitudes, it is activating its control circuits, which is usually what […]