[The placebo effect (author's transl)].

Placebos are liable to affect most diseases, physiologically autonomic and emotional functions and types of performance and also to produce side effects. Types of reactions to placebos are highly dependent on suggestion. Tranquilizer properties are registered more frequently than those of stimulants, and placebos are taken for active drugs more often than vice versa. Type of application, personality of the therapist and intensity of the stress situation may potentiate or diminish the effects of placebos in a specific manner. Constancy of time and situation as a condition for the identification of a placebo reactor is demonstrable to a limited extent only.