This isn't the post but it is a link to an article I posted a long time ago. It might help a little?

"The great French psychiatrist Pierre Janet coined the word dissaggregation about one hundred years ago to identify changes in consciousness which disturbed the normal, well-integrated functions of identity, memory and thought in several of his patients. This term was later translated from the French as dissociation

Janet's studies of patients with amnesias, fugues, and 'successive existences' (now known as other personalities), convinced him that their symptoms were the effect of split-off parts of the personality which were capable of independent thoughts, actions and identities. Further, he concluded that the dissociation which caused the symptoms was the result of past traumatic experiences, and that the symptoms could be alleviated by bringing the split-off memories and feelings into consciousness. Dr. Janet's contemporaries, both American and European, expanded upon his research and a model for the diagnosis and treatment of dissociation was soon built.

During the 1930's, however, as Freud's theories were embraced by the psychiatric world, studies of dissociation declined. Renewal of interest among the professional community was not sparked again until the 1980's, following increased public and professional awareness of child abuse and the rise in treatment of Vietnam veterans' post-traumatic stress syndromes.


http://www.soulselfhelp.on.ca/didpro.html