title: Reality testing: an important concept.
mesh_terms: D000368:Aged; D001143:Arousal; D003072:Cognition Disorders / Q000175:diagnosis*; D003221:Confusion / Q000175:diagnosis*; D004342:Drug Hypersensitivity; D004565:Electroconvulsive Therapy; D006801:Humans; D007088:Illusions; D011937:Reality Therapy