PSYCHOPATHOLOGICAL RESEARCHES:
STUDIES IN MENTAL DISSOCIATION

Boris Sidis, M. A., Ph.D., M.D.
with
William A. White, M.D., George M. Parker, M.D.

© 1908
Boston: Richard G. Badger

The tracings show different reactions of the patient's subconsciousness to different stimuli that were not perceived by her personal consciousness. The first three tracings show disturbances when the intelligence of the subconscious is tested. The patient is not in hypnosis, but under distraction. Subconscious stimulations by whispering, for instance, are given, which the patient does not appreciate consciously. The patient is to pass into hypnosis when the stimuli are correctly perceived. The intelligence of the subconscious is tested by its adequate response to highly complicated stimuli and by the correct appreciation of them in passing into the hypnotic state at the right moment, when a certain correct judgment is made. The subconscious disturbances in the pneumographic curve are clearly marked. The subconsciously formed habit of disturbance at multiples of five, and of keeping pace with counting, is clearly brought out in the curves.