1.

Person cannot recall important life-related information, typically traumatic or stressful information. The memory problem is more than simple forgetting.

2.

Significant distress or impairment.

3.

The symptoms are not caused by a substance or medical condition.

1.

Person experiences a disruption to his or her identity, as reflected by at least two separate personality states or experiences of possession.

2.

Person repeatedly experiences memory gaps regarding daily events, key personal information, or traumatic events, beyond ordinary forgetting.

3.

Significant distress or impairment.

4.

The symptoms are not caused by a substance or medical condition.

Information from: APA, 2013.