Psychedelic-Related Psychosis: From Model Psychosis to Psychotherapy

Area of Science:

• Neuroscience
• Psychiatry
• Pharmacology

Background:

• Classic psychedelics (LSD, psilocybin, mescaline) can induce psychotic symptoms.
• These symptoms range from acute effects to persistent psychotic illness.
• The "model psychosis" paradigm is debated due to differences in etiology and psychodynamics.

Purpose of the Study:

• To examine phenomenological similarities and differences between psychedelic-induced psychosis and primary psychosis.
• To clarify the nature of psychotic symptoms associated with classic psychedelic use.
• To explore therapeutic approaches for psychedelic-related psychosis.

Main Methods:

• Phenomenological comparison of psychedelic-induced and primary psychosis.
• Review of diagnostic classification systems for persistent symptoms.
• Adaptation of psychodynamic therapeutic approaches for schizophrenia-spectrum psychosis.

Main Results:

• Psychotic symptoms can occur during acute, subacute, or chronic phases after psychedelic use.
• Ego boundary porosity is a feature of acute psychedelic states, potentially leading to paranoia.
• Persistent psychedelic-induced psychotic symptoms become indistinguishable from primary psychosis over time.

Conclusions:

• Classic psychedelics can cause a spectrum of psychotic symptoms with varying durations.
• Distinguishing psychedelic-induced psychosis from primary psychosis is challenging, especially with persistent symptoms.
• Psychodynamic therapies may be adapted for treating psychedelic-related psychotic symptoms.