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Khat-induced hypnagogic hallucinations.

M Granek1, A Shalev, A M Weingarten

  • 1Outpatient Clinic, Gehah Psychiatric Hospital, Petah Tikva, Israel.

Acta Psychiatrica Scandinavica
|October 1, 1988
PubMed
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Khat chewing, common in some populations, may cause persistent hypnagogic hallucinations. This previously undescribed symptom, linked to cathinone, could impact psychiatric diagnoses.

Area of Science:

  • Neuroscience
  • Psychiatry
  • Pharmacology

Background:

  • Khat (Catha edulis) is a plant chewed for its stimulant effects, primarily attributed to cathinone.
  • Cathinone is chemically similar to dextroamphetamine, a known central nervous system stimulant.
  • Khat chewing is a prevalent cultural practice in Eastern Africa and Yemen, often considered harmless.

Observation:

  • A notable number of individuals with a history of chronic khat use report experiencing persistent hypnagogic hallucinations.
  • These hallucinations, occurring at the transition between wakefulness and sleep, have not been previously documented in association with khat use.
  • The presence of these hallucinations can complicate the diagnostic process in psychiatric evaluations.

Findings:

  • Chronic khat chewing is associated with a previously unreported symptom: persistent hypnagogic hallucinations.

Related Experiment Videos

  • The stimulant properties of cathinone and its potential neurobiological effects are explored as possible mechanisms.
  • A leading hypothesis suggests that chronic suppression of Rapid Eye Movement (REM) sleep may underlie the observed hallucinations.

    • Implications:

    • This finding highlights a potential, previously unrecognized adverse effect of khat chewing.
    • The described symptom may lead to misdiagnosis or delayed diagnosis of psychiatric conditions in affected populations.
    • Further research is warranted to elucidate the exact mechanisms and clinical significance of these hallucinations in chronic khat users.