Morton Prince

author

Morton Prince

1854–1929

A pioneering American physician and psychologist, he helped bring the study of dissociation, hypnosis, and abnormal psychology into mainstream medical discussion. His most famous case study, The Dissociation of a Personality, became a landmark in early psychology.

1 Audiobook

The unconscious : $b The fundamentals of human personality, normal and abnormal

The unconscious : $b The fundamentals of human personality, normal and abnormal

by Morton Prince

About the author

Born in Boston in 1854, Morton Prince studied at Harvard College and earned his medical degree from Harvard Medical School in 1879. He went on to build a career as a physician while becoming widely known for his work on the mind, especially dissociation, hypnosis, and related psychological disorders.

Prince was an important figure in early dynamic psychology in the United States. He founded the Journal of Abnormal Psychology and is especially remembered for his detailed study The Dissociation of a Personality, based on the case often known as "Sally Beauchamp." His writing helped shape early debates about multiple personality, memory, and the hidden layers of mental life.

Beyond his clinical work, Prince moved in Boston's academic and intellectual circles and remained active in research and writing for decades. He died in 1929, but his work still appears in histories of psychiatry and psychology as part of the field's early effort to understand trauma, suggestion, and the divided self.