alternating personality

Hundreds of cases of hallucinations, alternating personality, hysterio-epilepsy, and other kindred apparent abnormalities, had been studied by means of hypnotism, and certain processes inhibited or set going at the will of an operator.

From The Tyranny of the Dark by Hamlin Garland

I shall compare, as I have already said, the ethnological evidence for savage usages and beliefs analogous to thought-transference, coincidental hallucinations, alternating personality, and so forth, with the best attested modern examples, experimental or spontaneous.

From The Making of Religion by Andrew Lang

"Possession" is of course a fable; the superabundant world-wide, world-old evidence for the phenomenon was thrust aside without a glance, till hypnotic experiments brought to light what is called "alternating personality."

From The Faith of the Millions (2nd series) by George Tyrrell

He had been profoundly instructed by Tolman's account of a case of alternating personality which he had studied with so much care.

From The Tyranny of the Dark by Hamlin Garland

And from here we come to the exceptional cases of alternating personality.

From Psychotherapy by Hugo Münsterberg