Effects on the brain
Causes drastic change in emotion, usually sensations in emotional extremes, such as euphoria, overjoy, depression or terror. Also causes change in vision, which could be as simple as blurry vision, or as extensive as full hallucinations such as multicoloured geometric shapes and vivid imaginary sequences. Similar to LSD, users report impossible experiences, such as “hearing colour” and “seeing music”. Some users have reported “bad trips” involving nightmarish hallucinations and anxiety/panic attacks. These may also come with violence, aggression and unpredictable behavior. In either case, psilocybin is known to drastically affect the perception of the passage of time. Psilocybin caused heightened suggestibility, making users more susceptible to interpersonal requests and environmental stimuli.