Subjective Experience Following Psilocybin

Inclusion Criteria: * Individuals of all sexes, gender identities, and ethnicities * Ages 18 to 65 years of age at the time of screening * Ability to read/write in English * Agree not to consume psychoactive drugs 24 hours before dosing sessions or consume psychedelics during duration of study participation Exclusion Criteria: * Any notable abnormality on electrocardiogram or routine medical blood or urinalysis laboratory tests * Current psychiatric diagnoses, such as: major depressive disorder, generalized anxiety disorder, panic disorder, social anxiety disorder, obsessive compulsive disorder, moderate to severe substance use disorders, eating disorders, personality disorders, post-traumatic stress disorder * Lifetime or current psychiatric diagnoses of: psychosis, schizophrenia, bipolar disorder * Family history: a first- or second degree relative with a history of schizophrenia or other psychotic disorders, bipolar I or II * Medication: Any medication with the potential to interact with the investigational medicinal products, especially those with serotonergic mechanisms of actions like SSRIs, SNRIs or MAO-Inhibitors as well as other antipsychotics * Currently pregnancy or nursing, trying to become pregnant, or unwilling to use acceptable method of contraception during the study * Current or recent (within 12 weeks) participation in a clinical trial involving medication administration * Cognitive impairment (Folsetin Mini Mental State Exam score \< 24) * A disorder that may interfere with drug absorption, distribution, metabolism, or excretion (including gastrointestinal surgery). * Suffered a traumatic brain injury with one of the following symptoms Loss of consciousness \>30min Alteration of consciousness/mental state \>24h Post-traumatic amnesia \>1 day Glasgow Coma Scale (best available score in first 24 hours) \<13 * Any other circumstances that, in the opinion of the investigators, compromises participant safety