Serotonin:Serotonin is a neurotransmitter involved in regulating mood, appetite, and sleep. Hallucinogens such as LSD and psilocybin affect serotonin levels in the brain.
Synesthesia:Synesthesia is a perceptual phenomenon where stimulation of one sensory or cognitive pathway leads to involuntary experiences in another pathway. Some hallucinogens can induce synesthetic experiences.
Ego Dissolution: Ego dissolution refers to the loss of one's sense of self or personal identity. Certain hallucinogenic substances may cause ego dissolution as part of their effects.