Depersonalization / Derealization Disorder
DEFINITION
- Depersonalization is characterized by a dissociated sense of self. Symptoms may include uncomfortable experience of detachment from one’s self, a dream-like state, or watching one’s self as if zoomed out/from above/in a movie. There may be a perception of losing control over one’s thoughts and actions.
- Derealization is characterized by a dissociated sense of one’s surroundings. Symptoms may include feelings of unreality or detachment from a world that is dreamlike, foggy, or visually distorted as if behind a glass wall or from a distance.
- Depersonalization/derealization disorder (DDD) is diagnosed when these experiences are persistent/recurrent and cause significant distress, while reality testing is intact. It is classified under the Dissociative Disorders section of the Diagnostic and Statistical Manual of Mental Disorders, 5th Edition (DSM-5)[1].
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Last updated: August 9, 2025
Citation
Gary, Joseph, et al. "Depersonalization / Derealization Disorder." Johns Hopkins Psychiatry Guide, The Johns Hopkins University, 2025. Johns Hopkins Guides, www.hopkinsguides.com/hopkins/view/Johns_Hopkins_Psychiatry_Guide/787070/2.1/Depersonalization___Derealization_Disorder.
Gary J, Huang C, Bienvenu O. Depersonalization / Derealization Disorder. Johns Hopkins Psychiatry Guide. The Johns Hopkins University; 2025. https://www.hopkinsguides.com/hopkins/view/Johns_Hopkins_Psychiatry_Guide/787070/2.1/Depersonalization___Derealization_Disorder. Accessed October 8, 2025.
Gary, J., Huang, C., & Bienvenu, O. (2025). Depersonalization / Derealization Disorder. In Johns Hopkins Psychiatry Guide. The Johns Hopkins University. https://www.hopkinsguides.com/hopkins/view/Johns_Hopkins_Psychiatry_Guide/787070/2.1/Depersonalization___Derealization_Disorder
Gary J, Huang C, Bienvenu O. Depersonalization / Derealization Disorder [Internet]. In: Johns Hopkins Psychiatry Guide. The Johns Hopkins University; 2025. [cited 2025 October 08]. Available from: https://www.hopkinsguides.com/hopkins/view/Johns_Hopkins_Psychiatry_Guide/787070/2.1/Depersonalization___Derealization_Disorder.
* Article titles in AMA citation format should be in sentence-case
TY - ELEC
T1 - Depersonalization / Derealization Disorder
ID - 787070
A1 - Gary,Joseph,M.D.
AU - Huang,Cindy,M.D.
AU - Bienvenu,O. Joseph,M.D., Ph.D.
Y1 - 2025/08/09/
BT - Johns Hopkins Psychiatry Guide
UR - https://www.hopkinsguides.com/hopkins/view/Johns_Hopkins_Psychiatry_Guide/787070/2.1/Depersonalization___Derealization_Disorder
PB - The Johns Hopkins University
DB - Johns Hopkins Guides
DP - Unbound Medicine
ER -