This document discusses Dissociative Identity Disorder (DID), formerly known as Multiple Personality Disorder. It describes the causes and symptoms of DID, which include severe trauma at a young age, neglect or abuse, distinct identities or personality states, and extensive memory loss. The document also summarizes the plot of the 2003 movie "Identity" where strangers are murdered one by one at a hotel, and one man, Malcolm Rivers, is diagnosed with DID which may explain his behavior related to the murders.

1. Dissociative Identity Disorder
and Identity
Tawnya Worthington
Psychology 101

2. What is Dissociative
Identity Disorder (DID)?

DID was once known as Multiple
Personality Disorder.

DID is a severe dissociation disorder,
which leads to a lack of connection in:
− A person's thoughts
− Memories
− Feelings
− Actions
− Sense of identity

3. What Causes DID?

DID is is strongly correlated with:
− recurring, overpowering, and
often life-threatening trauma at a
sensitive developmental stage
− insistent neglect or emotional
abuse
− families where parents are
frightening and unpredictable,
the children may become
dissociative

4. Symptoms of DID

2+ distinct identities or personality states
are present

2 or more identities continually take
control of the person's behavior.

Extensive memory loss that can not be
explained by ordinary forgetfulness.

These reoccurring symptoms are not the
cause of substance abuse.

5. Identity

A 2003 movie
inspired by Agatha
Christie's novel And
Then There Were
None.

10 strangers
become stranded at
a Nevada hotel, 1 by
1 they are all
murdered.

Who is the killer
amongst them?

6. Malcolm Rivers

As Malcolm Rivers awaits trial for
several horrific murders at a hotel
(unrelated to the current murders of 10
people in Nevada), his attorney finds a
journal that may explain his irradic
behavior.

7. Significance

As the trial continues, Doctor Mallick diagnoses
Malcolm Rivers with DID.

As Doctor Mallick is able to bring forth one
personality “Ed” they converse about the events of
the 10 people being murdered at the hotel in
Nevada.

This entire hostile situation is occurring in Malcolm's
mind.