title: EEG alpha activity and its relationship to altered states of consciousness.
mesh_terms: D000513:Alpha Rhythm; D001288:Attention / Q000502:physiology; D001676:Biofeedback, Psychology / Q000502:physiology; D003243:Consciousness / Q000502:physiology*; D005133:Eye Movements; D006185:Habituation, Psychophysiologic / Q000502:physiology; D006801:Humans; D006990:Hypnosis; D009949:Orientation / Q000502:physiology; D010551:Personality; D012890:Sleep / Q000502:physiology