RT Book, Section A1 Carey, Jennifer L. A1 Babu, Kavita M. A2 Hoffman, Robert S. A2 Howland, Mary Ann A2 Lewin, Neal A. A2 Nelson, Lewis S. A2 Goldfrank, Lewis R. SR Print(0) ID 1108432969 T1 Hallucinogens T2 Goldfrank's Toxicologic Emergencies, 10e YR 2015 FD 2015 PB McGraw-Hill Education PP New York, NY SN 9780071801843 LK accessemergencymedicine.mhmedical.com/content.aspx?aid=1108432969 RD 2024/03/28 AB A “hallucination” may be defined as a false perception that has no basis in the external environment. The term is derived from the Latin term meaning “to wander in mind.” While the term “psychedelic” has been used for years to refer to the recreational and nonmedical effects of hallucinogens, other terms, like entheogen and entactogen, frequently appear in Internet discussions. Entheogens are “substances which generate the god or spirit within,” while entactogens create an awareness of “the touch within.”41 These terms all refer to the same xenobiotics, used with differing intent or in varying settings. Hallucinations differ from illusions, which are distorted perceptions of objects based in reality.