The Depersonalization Derealization Syndrome is relatively common and is more likely to occur when certain risk factors are present.
Patient selection: depersonalization and derealization not due to a psychotic disorder
Risk factors:
(1) adverse drug effect
(2) anxiety, phobia or panic attack
(3) depression
(4) head trauma
(5) if half asleep
(6) migraine headache
(7) physical or mental exhaustion, including burnout
(8) post-traumatic stress disorder
(9) recreational drug intoxication, including alcohol misuse
(10) schizotypal personality disorder
(11) temporal lobe epilepsy
Sometimes no cause is precipitating cause is found (idiopathic).
