Chapter 9: Hallucinogens

Hallucinogens Overview

  • Hallucinogens are substances that alter sensory processing, leading to perceptual disturbances, altered thought processing, and depersonalization.

  • They can evoke spiritual-like experiences.

Historical Context

  • Involved in Native American religious practices (American Indian Religious Freedom Act, 1978).

  • Associated with figures like Timothy Leary who promoted exploration of consciousness.

  • Some mental health practitioners utilize hallucinogens in psychotherapy.

Types of Hallucinogens

Nature

  • Traditional hallucinogens (LSD, mescaline, psilocybin).

  • Phenylethylamines (e.g., Ecstasy, amphetamines).

  • Anticholinergic agents (e.g., Jimsonweed).

Sensory and Psychological Effects

  • Altered sensory experiences (synesthesia).

  • Flashbacks, profound self-reflection, and feelings of cosmic merging.

Traditional Hallucinogens: LSD

  • Types include LSD, mescaline, psilocybin, and DMT.

  • LSD effects: increase in neural activity, sympathetic nervous system activation, and possible psychological dependency.

  • Effects begin within 30-90 minutes, lasting up to 12 hours.

Other Hallucinogens

  • Mescaline causes color perception changes; psilocybin shares effects with LSD.

  • DMT is a short-acting hallucinogen.

  • Newer substances include Foxy and Nutmeg.

Phenylethylamine Hallucinogens

  • Chemically similar to amphetamines, interact with serotonin and dopamine.

  • Includes DOM and designer amphetamines like MDMA.

Anticholinergic Hallucinogens

  • Contain alkaloids from plants (e.g., Atropa belladonna, Jimsonweed).

Other Hallucinogens

  • PCP: Highly dangerous, causes various psychotic effects.

  • Ketamine: Anesthetic with potential antidepressant properties.

  • Dextromethorphan: Commonly abused cough suppressant.

  • Salvia divinorum: Causes intense hallucinations, legal in some areas.