Spanning a period of 50 years, these four volumes have been assembled for clinicians and researchers who wish to explore the work of one of the most seminal minds in the history of hypnosis and psychotherapy. Each volume contains some papers that have heretofore not been published. Volume II describes subjects trained for deep trance phenomena so that they could undergo the requisite neuro- and pyschophysiological changes. Papers are grouped in five areas: Visual, Auditory, Psychophysiological Processes, Time Distortion and Research Problems.