title: Acute effects of the Paulinia cupana, "Guaraná" on the cognition of normal volunteers.
abstract: The authors studied the acute effects of "Guaraná", when compared to caffeine and placebo, (double blind study) on cognition, anxiety and sleep in 30 normal volunteers. Although results were negative it cannot be concluded that "Guaraná" is harmless. Other studies shall be undertaken, administering "Guaraná" on a long term basis, as popularly proclaimed.
authors.affiliation: Clinical Psychobiology Research Center of the CEBRID Brazilian Center for Information on Psychotropic Drugs of the Escola Paulista de Medicina, São Paulo.
authors.forename: J C
authors.initials: JC
authors.lastname: Galduróz
authors.forename: E de A
authors.initials: Ede A
authors.lastname: Carlini
mesh_terms: D000328:Adult; D001007:Anxiety; D001938:Brazil; D002110:Caffeine / Q000009:adverse effects; D003071:Cognition; D004311:Double-Blind Method; D005260:Female; D005638:Fruit / Q000009:adverse effects*; D006801:Humans; D008297:Male; D008519:Medicine, Traditional; D010946:Plants, Medicinal; D012890:Sleep
chemical_list: D002110:Caffeine