title: Differential effects of caffeine on free recall after semantic and rhyming tasks in high and low impulsives.
abstract: The effects of caffeine on free recall after acquisition on semantic and rhyming tasks were examined. Following a between-subjects design, high and low impulsive male postgraduate students were administered placebo and four doses of caffeine citrate (1, 2, 3 and 4 mg/kg body weight) in a laboratory situation. A double blind procedure was adopted for drug administration. The study supports the following conclusions: (1) under no drug condition, high impulsives recall more after semantic acquisition while their counterparts, the low impulsives, recall more after rhyming acquisition; (2) caffeine facilitates recall in high impulsives after rhyming acquisition but hinders it after semantic acquisition; (3) caffeine does not reliably influence recall of low impulsives.
authors.affiliation: Department of Psychology, Banaras Hindu University, Varanasi, India.
authors.forename: U
authors.initials: U
authors.lastname: Gupta
mesh_terms: D000328:Adult; D002110:Caffeine / Q000494:pharmacology*; D002940:Circadian Rhythm; D004311:Double-Blind Method; D006801:Humans; D007175:Impulsive Behavior / Q000523:psychology*; D008297:Male; D008568:Memory / Q000187:drug effects*; D010551:Personality; D014706:Verbal Learning / Q000187:drug effects*
chemical_list: D002110:Caffeine