Division of Psychology, School of Social Sciences, Nottingham Trent University, Burton Street, Nottingham, NG1 4BU, UK.
Food Funct. 2013 Apr 30;4(5):770-6. doi: 10.1039/c3fo30243a.
Previous studies have reported that increasing glycaemia by a glucose-containing drink enhances memory functioning. The aim of the present study was to extend this literature by examining the effects of glucose on episodic memory as well as attention processes, and to investigate associated event-related potential (ERP) markers. Fifteen minutes after treatment (25 g glucose or placebo drink), 35 participants performed an old/new recognition memory task and a Stroop colour naming task. Consistent with previous research, when controlling for glucose regulation, cognitive facilitation was observed behaviourally for verbal memory, but there was also a trend towards attentional facilitation. Furthermore, across both domains, it was the most demanding task conditions that exhibited glucose sensitivity. In support of the behavioural results, the analysis of ERPs across treatment groups revealed an enhanced left-parietal old/new effect related to recollection, and also suggested modulation of attentional processes. The results suggest that glucose may facilitate attention as well as memory.
先前的研究报告指出，饮用含葡萄糖的饮料会提高血糖水平，从而增强记忆功能。本研究旨在通过考察葡萄糖对情景记忆和注意力过程的影响，并研究相关的事件相关电位 (ERP) 标志物，来扩展这一文献。在治疗后 15 分钟（25 克葡萄糖或安慰剂饮料），35 名参与者进行了旧/新识别记忆任务和斯特鲁普颜色命名任务。与先前的研究一致，当控制葡萄糖调节时，在行为上观察到语言记忆的认知促进，但注意力促进也有趋势。此外，在两个领域中，都是要求最高的任务条件表现出对葡萄糖的敏感性。支持行为学结果，对治疗组的 ERP 分析显示，与回忆有关的左顶叶旧/新效应增强，并且还表明对注意力过程的调节。研究结果表明，葡萄糖可能会促进注意力和记忆。
