Multiple Personality Disorder (MPD) in AP Psychology

Definition

Multiple Personality Disorder, now known as Dissociative Identity Disorder (DID), is a psychological condition where two or more distinct and separate identities or personality states are present in—and alternately take control of—an individual.

Related terms

Dissociation:

This is a mental process that causes a lack of connection in a person's thoughts, memory and sense of identity. It's like being physically present but mentally absent from a situation.

Identity Crisis:

This refers to an internal conflict involving values and choices about important aspects of life such as career direction or moral dilemmas. It's akin to standing at crossroads unsure which path to take.

Schizophrenia:

A chronic mental disorder characterized by distortions in thinking, perception, emotions, language, sense of self and behavior. Imagine your brain constantly playing tricks on you - seeing things that aren't there or hearing voices no one else can hear.