Brandt Karen R, Sünram-Lea Sandra I, Qualtrough Kirsty
University of Lancaster, UK.
Biol Psychol. 2006 Aug;73(2):199-208. doi: 10.1016/j.biopsycho.2006.04.001. Epub 2006 May 19.
Previous research has demonstrated that glucose administration improves memory performance. However few studies have addressed the effects of glucose on emotional material that by nature already enjoys a memory advantage. The aim of the present research was therefore to investigate whether the memory facilitation effect associated with glucose would emerge for emotional words. Experiment 1 demonstrated that negative words were better recognized and remembered than positive and neutral words. Experiment 2 further explored these effects under conditions of glucose administration and an aspartame control. The results revealed that both the aspartame and glucose groups replicated the results from Experiment 1. The present research therefore demonstrated that the glucose facilitation effect did not emerge for material that already benefits from a memory advantage. These results also raise the question of whether the dose response relationship previously associated with glucose administration is applicable when the information being processed is of an emotional nature.
先前的研究表明，给予葡萄糖可改善记忆表现。然而，很少有研究探讨葡萄糖对本质上已具有记忆优势的情感材料的影响。因此，本研究的目的是调查与葡萄糖相关的记忆促进作用是否会出现在情感词汇上。实验1表明，负面词汇比正面和中性词汇更容易被识别和记忆。实验2在给予葡萄糖和阿斯巴甜对照的条件下进一步探究了这些影响。结果显示，阿斯巴甜组和葡萄糖组都重复了实验1的结果。因此，本研究表明，对于已经从记忆优势中获益的材料，葡萄糖促进效应并未出现。这些结果还提出了一个问题，即当所处理的信息具有情感性质时，先前与给予葡萄糖相关的剂量反应关系是否适用。
