psychogalvanometer การใช้

In Mathison's words, the E-meter " has a needle that swings back and forth across a scale when a patient holds on to two electrical contacts " . p . 64 In 1950 . . . I next attended a series of lectures being given by a very controversial figure, who several times emphasized that perhaps the major problem of psychotherapy was the difficulty of maintaining the communication of accurate or valid data from the patient to the therapist . . . . it appeared to me that the psychogalvanometer showed most promise.