Rorschach Indications of Emotional Instability and Susceptibility to Motion Sickness.

HE PROBLEM of susceptibility to motion sickT ness has not captured the imagination of psychological thinkers. It is, however, of continuing interest to experimenters involved in studies of disorientation and vestibular functioning. Almost all studies of motion sickness and disorientation have alluded to “underlying personality factors” as contributing something to the variance, but investigators have usually not included such factors in the variables studied. These personality factors have gone largely undefined l2 and unrelated to the more important physiological processes. Individual differences in susceptibility to motion sickness have been noted by many investigators.’, 4, Some have attributed these differences to the presence of anxiety,’” or to physiological differences t i or other unspecified psychological phenomena. The present study explored some of the relationships, in subjects with normal function of the vestibular organs, between certain aspects of personality, as measured by the Rorschach test, and susceptibility to experimentally induced