DISCUSSION: While he agreed with Peto's thesis that vestibular sensation was important in the development of personality, Dr. Martin Stein felt the discussion of the clinical phenomena was insufficiently precise. It is necessary to separate manifestations of vestibular disturbance from other kinesthetic experience, vasomotor changes, and alterations of consciousness that are not manifested by true vertigo but rather by dizziness, giddiness, faintness, etc., which may be precipitated by events during the analytic session. Stein did not think we had yet evolved methods for demonstrating how early vestibular experiences, during