Andrew Salter's Condition Reflex introduced behavior therapy and many specific techniques still used today, including methods for assertion, getting in touch with one's feelings, relaxation, and imagery. CRT includes numerous case studies of how he helped his clients quickly overcome their phobias, anxieties, and depression. Andrew Salter's revolutionary masterpiece introduced behavior therapy and many specific techniques still used today, including methods for assertion, getting in touch with one's feelings, relaxation, and imagery. Conditioned Reflex Therapy also includes numerous case studies of how he helped his clients quickly overcome their phobias, anxieties, and depression.