Personality Alterations

It has been fifteen years since research in pathological psychology began in France, England and a few other countries, based on the study of hysteria and suggestion; we all know how ardently physiologists and philosophers have engaged in this new study, and in a very short space of time a really considerable amount of observations and experiences of all kinds have been collected; hallucination, paralysis by suggestion, personality alterations, memory disorders, muscle sense, suggestions during waking and hypnosis, unconscious suggestions, etc., these are the main issues that have been examined and thoroughly researched.