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 first tracing is in the normal state gradually passing into the hypnotic state. The rest of the tracings were taken when the patient was in the hypnotic state, stimulations being supplied either by people who were en rapport with her (designated by + x) or by people who did not stand en rapport with her (designated by - x). The changes due to the stimulations by – x are perfectly distinct. The different reactions here are far more emphasized, showing that the patient in the hypnotic state was more sensitive to stimulations given by either + x or - x than she was to similar stimulations in the normal waking state.