title: Effects of glucose administration on category exclusion recognition.
abstract: Previous research has produced discrepant findings as to whether glucose administration effects lead to enhanced recollection or arise only under dual-task conditions. The aim of the present research was to address these issues by firstly employing an alternative cognitively demanding paradigm that has been linked to hippocampal function, i.e. the Process Dissociation Procedure (PDP). A second aim was to use this paradigm to explore whether glucose affects qualitative aspects of memory function. To achieve these aims, the PDP task was administered to participants who had either consumed a glucose (25 g) or aspartame-sweetened control drink. Results demonstrated glucose facilitation effects only under difficult task conditions and with no such effect emerging for the process of recollection. The present results support the contention that the beneficial effects of glucose arise under hippocampally driven, cognitively demanding task conditions, and that this effect enhances quantitative but not qualitative aspects of recognition memory.
authors.affiliation: Department of Psychology, University of Roehampton, London, UK karen.brandt@roehampton.ac.uk.
authors.forename: Karen R
authors.initials: KR
authors.lastname: Brandt
mesh_terms: D000293:Adolescent; D001218:Aspartame / Q000008:administration & dosage; D003071:Cognition / Q000187:drug effects*; D004311:Double-Blind Method; D005260:Female; D005947:Glucose / Q000008:administration & dosage / Q000494:pharmacology*; D006624:Hippocampus / Q000187:drug effects / Q000378:metabolism; D006801:Humans; D008297:Male; D008568:Memory / Q000187:drug effects*; D011939:Mental Recall / Q000187:drug effects; D009483:Neuropsychological Tests; D021641:Recognition, Psychology / Q000187:drug effects; D013549:Sweetening Agents / Q000008:administration & dosage / Q000494:pharmacology*; D055815:Young Adult
chemical_list: D013549:Sweetening Agents; D005947:Glucose; D001218:Aspartame
keywords: Glucose facilitation effect; exclusion task; familiarity; recollection