The trip of a lifetime: hallucinogen persisting perceptual disorder.

  title={The trip of a lifetime: hallucinogen persisting perceptual disorder.},
  author={Lauren D. Anderson and Hannah Lake and Mark Walterfang},
  journal={Australasian psychiatry : bulletin of Royal Australian and New Zealand College of Psychiatrists},
  volume={26 1},
OBJECTIVES The differential diagnosis of psychotic symptoms is broad and extends beyond primary psychotic and affective disorders. We aim to illustrate that the chronology and phenomenological nature of hallucinatory symptoms may provide clues towards alternative diagnoses, such as hallucinogen persisting perceptual disorder (HPPD). We describe the resurgence of visual pseudo-hallucinations in a young woman in the context of previous substance-induced hallucinatory symptoms and a prior… CONTINUE READING
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