DPDR and Stress: Transient Adaptation vs Chronic Disorder

Depersonalization and derealization states (DPDR) often first appear during periods of intense stress, anxiety, or nervous system overload. In some cases, this is a short-term protective response of the brain, allowing a person to survive the overload. In others, symptoms become fixed and turn into a chronic disorder. It is important to distinguish between these two paths to understand the nature of DPDR and build effective recovery strategies.

Neurobiological basis of adaptation

Research shows that DPDR is linked to regulation between the prefrontal cortex (responsible for cognitive control) and the limbic system (emotions, especially the amygdala and insular cortex).

In acute stress, the brain suppresses emotional reactions, switching into an “energy-saving mode.” DPDR acts as a temporary adaptation — it reduces the intensity of fear and pain, helping to cope with overload.
In chronic DPDR, this mechanism becomes fixed: emotional “numbing” persists, and the integration of bodily and cognitive signals is disrupted.

Transient episodes

Short-term episodes of depersonalization and derealization are relatively common:

epidemiological studies show that up to 50–60% of people experience such states at least once in their lifetime (Hunter et al., 2004);
these episodes usually resolve spontaneously as part of the adaptive stress response and do not require intervention.

Chronic disorder

Unlike transient episodes, chronic DPDR:

persists for weeks or months,
is accompanied by a sustained sense of detachment from self and the world,
causes distress and reduces quality of life,
often co-occurs with anxiety and depressive disorders.

The brain becomes “stuck” in the emotion-suppression mode, and what was initially adaptive turns into pathological fixation.

Comparison with PTSD

DPDR is often compared to post-traumatic stress disorder (PTSD). In both cases, stress is a trigger; however:

in PTSD, intrusive memories, flashbacks, and hyperactivation of the amygdala dominate;
in DPDR, the opposite occurs: emotional numbing and excessive cognitive control.

Thus, DPDR can be seen as one pole of stress dysregulation: instead of hyperreactivity, there is hyporegulation.

Key takeaway

DPDR is not always a disorder. Temporary states may be part of the natural adaptation to stress. The problem arises when this mechanism becomes fixed and chronic. In such cases, DPDR requires attention, understanding, and recovery.

Scientific sources

Sierra M., Berrios G.E. (2002). Depersonalization: Neurobiological perspectives. Biological Psychiatry, 52(10), 898–908.
Hunter E.C.M., Sierra M., David A.S. (2004). The epidemiology of depersonalisation and derealisation. A systematic review. Social Psychiatry and Psychiatric Epidemiology, 39, 9–18.
Simeon D., Abugel J. (2006). Feeling Unreal: Depersonalization Disorder and the Loss of the Self. Oxford University Press.
American Psychiatric Association. (2022). DSM-5-TR: Depersonalization/Derealization Disorder. Washington, DC.
Michal M., Adler J., Reiner I., et al. (2016). A case series of 223 patients with depersonalization-derealization syndrome. BMC Psychiatry, 16, 203.