TY - CHAP M1 - Book, Section TI - Hallucinogens 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. PY - 2015 T2 - Goldfrank's Toxicologic Emergencies, 10e 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. SN - PB - McGraw-Hill Education CY - New York, NY Y2 - 2024/11/06 UR - accessemergencymedicine.mhmedical.com/content.aspx?aid=1108432969 ER -