title: Alpha biofeedback: fact or artifact?
mesh_terms: D000293:Adolescent; D000328:Adult; D000513:Alpha Rhythm; D001676:Biofeedback, Psychology; D005364:Field Dependence-Independence; D006801:Humans; D008029:Lighting; D008875:Middle Aged; D009497:Neurotic Disorders; D011618:Psychotic Disorders; D012107:Research Design; D014796:Visual Perception