Dual Personality

Dual personality refers to having two distinct personality states.

For instance, a 1926 (Goddard) case featured a 19-year-old woman who was frequently transitioning from “Norma”, a reserved and meek personality, to “Polly”, an emotional, greedy, disobedient, and unreasonable 4-year-old who later appeared to be 15 years old. In the current fifth edition of Diagnostic and Statistical Manual of Mental Disorders (DSM 5), this condition is classified as “Dissociative Identity Disorder” (DID) which was previously termed as “Multiple Personality Disorder". DID is characterized by at least two enduring separate personalities and having significant memory gaps.