出典:Wiktionary
出典:『Wiktionary』 (2026/04/22 19:35 UTC 版)
Coined by Romanian psychologist and chemist Corneliu E. Giurgea in 1972, derived from the Ancient Greek words νόος (nóos, “mind”) and τροπέω (tropéō, “to turn”). By surface analysis, noo(s) + -tropic, literally “mind changing”.
nootropic (plural nootropics)
nootropic (comparative more nootropic, superlative most nootropic)
出典:Wikipedia
出典:『Wikipedia』 (2011/07/10 20:04 UTC 版)
Nootropics (pronounced /noʊ.ɵˈtrɒpɨks/), also referred to as smart drugs, memory enhancers, and cognitive enhancers as well as intelligence enhancers, are drugs, supplements, nutraceuticals, and functional foods that are purported to improve mental functions such as cognition, memory, intelligence, motivation, attention, and concentration. The word nootropic was coined in 1972 by the Romanian Dr. Corneliu E. Giurgea, derived from the Greek words νους nous, or "mind," and τρέπειν trepein meaning "to bend/turn". Nootropics are thought to work by altering the availability of the brain's supply of neurochemicals (neurotransmitters, enzymes, and hormones), by improving the brain's oxygen supply, or by stimulating nerve growth. However the efficacy of nootropic substances, in most cases, has not been conclusively determined. This is complicated by the difficulty of defining and quantifying cognition and intelligence.