Biofeedback device for recognition of α wave component and muscle potential component

摘要: Disclosed herein is a biofeedback device which separately extracts the α wave component and muscle included in brain and, therefore, permits user thereof through auditory perception of associated audio frequency sounds to recognize accurately appearance or on basis principle that exclusive sound with indicates relaxation subject's mental state, tension state cephalic simultaneous both components occurrence phenomenon having nothing do responses for feedback training.