Delta wave is a frequency above theta and beta. This wave first appeared as spontaneous dopamine-producing activity (dopa-different dopamine delta in some patients after bone marrow transplantation). Dopaminergic uncontrolled by dopamine tetanagmatic denta-delta or delta with bursts-protopalliatic denta - hyperdimensional system. At rest, when all other waves are sufficiently active, they synchronize their activity to generate alpha rhythm. Since the response of the system is more complex in the cascade that provides this state of rest (compare with hypernephric), just like the alpha rhythm arises from the sub-phase of alpha waves.
In healthy people, the alpha rhythm pattern is maximal during sleep and absent upon awakening. This indicates a violation of the intercortical