Glucose administration prior to a divided attention task improves tracking performance but not word recognition: evidence against differential memory enhancement?

Scholey, Andrew; Sünram-Lea, Sandra I.; Greer, Joanna; Elliott, Jade M.; Kennedy, David O.

doi:10.1007/s00213-008-1387-1

Cited by 54 publications

(70 citation statements)

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“…However, the hippocampus hypothesis does not account well for previous study findings in which non-memory tasks are improved by glucose (e.g. Donohoe and Benton 1999;Scholey et al 2009). Given that recollection, but not familiarity, is believed to be supported by the hippocampus (Brown and Aggleton 2001;Aggleton and Brown 2006), the ERP results reported here also offer little support for the hippocampus hypothesis, at least in its selectively specific form.…”

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confidence: 83%

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Glucose modulates event-related potential components of recollection and familiarity in healthy adolescents

et al. 2009

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confidence: 83%

“…By contrast, other studies have found that glucose also improves performance on tasks subserved by other brain regions (e.g. Donohoe and Benton 1999;Martin and Benton 1999;Kennedy and Scholey 2000;Scholey et al 2001;Scholey et al 2009). Studies such as this question the robustness of the 'hippocampus hypothesis'.…”

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confidence: 57%

Glucose modulates event-related potential components of recollection and familiarity in healthy adolescents

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“…Glucose ingestion was observed to improve tracking performance, but not recognition memory performance, in the healthy young adult participants. This study demonstrates that oral glucose ingestion can improve performance on non-memory tasks in healthy young adults, possibly by enhancing an individual's capacity to divide attention between two or more concurrent tasks (Scholey et al, 2009a).…”

Section: Divided Attentionmentioning

confidence: 73%

“…In a related study (Scholey et al, 2009a), a dual tasking paradigm was employed in which participants were required to perform an attention task which involved tracking a moving stimulus on a computer screen simultaneously with encoding of a supraspan word list, subsequent to ingestion of glucose or a saccharin placebo. Word list retention was tested by a recognition memory procedure, in which participants were required to distinguish studied words from foils (in the absence of the tracking task).…”

Section: Divided Attentionmentioning

confidence: 99%

Glucose enhancement of human memory: A comprehensive research review of the glucose memory facilitation effect

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Eekelen

et al. 2011

Neuroscience & Biobehavioral Reviews

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The brain relies upon glucose as its primary fuel. In recent years, a rich literature has developed from both human and animal studies indicating that increases in circulating blood glucose can facilitate cognitive functioning. This phenomenon has been termed the 'glucose memory facilitation effect'. The purpose of this review is to discuss a number of salient studies which have investigated the influence of glucose ingestion on neurocognitive performance in individuals with a) compromised neurocognitive capacity, as well as b) normally functioning individuals (with a focus on research conducted with human participants). The proposed neurocognitive mechanisms purported to underlie the modulatory effect of glucose on neurocognitive performance will also be considered. Many theories have focussed upon the hippocampus, given that this brain region is heavily implicated in learning and memory. Further, it will be suggested that glucose is a possible mechanism underlying the phenomenon that enhanced memory performance is typically observed for emotionally laden stimuli.

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“…Benton et al, 1994) can enhance cognitive performance. It also appears that such effects are more marked during cognitive processing involving a relatively high level of mental effort (Kennedy and Scholey, 2000;Scholey et al, 2001Scholey et al, , 2003Scholey et al, , 2008. In addition, studies that have shown improved cognitive performance following the consumption of plant extracts such as Panax ginseng, Ginkgo biloba which may be related to their ability to enhance cerebral blood flow, oxygen utilization or glucose metabolism (Scholey and Kennedy, 2002;Reay et al, 2005Reay et al, , 2006.…”

Section: Introductionmentioning

confidence: 99%

Consumption of cocoa flavanols results in acute improvements in mood and cognitive performance during sustained mental effort

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Crystal (2010) Consumption of cocoa flavanols results in acute improvements in mood and cognitive performance during sustained mental effort. Journal of Psychopharmacology, 24 (10 Northumbria University has developed Northumbria Research Link (NRL) to enable users to access the University's research output. Copyright © and moral rights for items on NRL are retained by the individual author(s) and/or other copyright owners. Single copies of full items can be reproduced, displayed or performed, and given to third parties in any format or medium for personal research or study, educational, or not-for-profit purposes without prior permission or charge, provided the authors, title and full bibliographic details are given, as well as a hyperlink and/or URL to the original metadata page. The content must not be changed in any way. Full items must not be sold commercially in any format or medium without formal permission of the copyright holder. The full policy is available online: http://nrl.northumbria.ac.uk/policies.html This document may differ from the final, published version of the research and has been made available online in accordance with publisher policies. To read and/or cite from the published version of the research, please visit the publisher's website (a subscription may be required.) XML Template (2009) [17.9.2009 [ Cocoa flavanols (CF) positively influence physiological processes in ways which suggest that their consumption may improve aspects of cognitive function. This study investigated the acute cognitive and subjective effects of CF consumption during sustained mental demand. In this randomized, controlled, double-blinded, balanced, three period crossover trial 30 healthy adults consumed drinks containing 520 mg, 994 mg CF and a matched control, with a 3-day washout between drinks. Assessments included the state anxiety inventory and repeated 10-min cycles of a Cognitive Demand Battery comprising of two serial subtraction tasks (Serial Threes and Serial Sevens), a Rapid Visual Information Processing (RVIP) task and a 'mental fatigue' scale, over the course of 1 h. Consumption of both 520 mg and 994 mg CF significantly improved Serial Threes performance. The 994 mg CF beverage significantly speeded RVIP responses but also resulted in more errors during Serial Sevens. Increases in self-reported 'mental fatigue' were significantly attenuated by the consumption of the 520 mg CF beverage only. This is the first report of acute cognitive improvements following CF consumption in healthy adults. While the mechanisms underlying the effects are unknown they may be related to known effects of CF on endothelial function and blood flow.

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Glucose administration prior to a divided attention task improves tracking performance but not word recognition: evidence against differential memory enhancement?

Cited by 54 publications

References 54 publications

Glucose modulates event-related potential components of recollection and familiarity in healthy adolescents

Glucose modulates event-related potential components of recollection and familiarity in healthy adolescents

Glucose enhancement of human memory: A comprehensive research review of the glucose memory facilitation effect

Consumption of cocoa flavanols results in acute improvements in mood and cognitive performance during sustained mental effort

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