Cerebral hemispheric differences in memory of emotional and non-emotional words in normal individuals
Cerebral hemispheric differences in memory of emotional and non-emotional words in normal individuals
复制标题
正常人大脑半球对情感和非情感词语记忆的差异
DOI：
10.1016/s0028-3932(02)00018-0
复制
发表时间：
2002
期刊：
影响因子：
2.6
通讯作者：
M. Moscovitch
中科院分区：
文献类型：
--
作者：
S. Nagae;M. Moscovitch
本研究旨在检查大脑半球在积极、消极和非情绪性单词记忆方面的差异，使用一种新的方法，连续呈现到每个视觉半场，其中每个项目的感知几乎是完美的，从而允许情绪对记忆影响的偏侧差异出现，不受感知的影响（实验1）。该程序与传统的感知识别进行了比较（实验2）。在实验1中，每次试验的每半场连续出现12个单词，然后在试验结束时自由回忆。结果表明，在两个视野中，对积极和消极情绪词的回忆均优于非情绪词。尽管 RVF 中非情绪词的回忆优于左视野 (LVF)，但左右视野 (RVF) 中积极和消极情绪词的回忆没有差异。 LVF 中情感词和非情感词的回忆差异比 RVF 中更大。实验 2 在单个项目的每次视觉半场呈现后使用更传统的感知识别方法。在每个单词条件下，RVF 的感知识别都比 LVF 更好。与实验 1 中的记忆一样，情感词和非情感词的感知识别没有视野差异。结果支持了这样的假设：情感词的外显记忆更多地依赖于右半球，而情感词和非情感词的感知更依赖于左半球。
The present study was designed to examine the cerebral hemispheric differences in memory of positive, negative and non-emotional words using a new method of successive presentation to each visual half-field in which perception of each item was nearly perfect thereby allowing laterality differences for effects of emotion on memory to emerge unconfounded by perception (Experiment1). This procedure was compared with traditional perceptual identification (Experiment 2). In Experiment 1, 12 words were presented successively in each half field in each trial followed by free recall at the end of the trial. The results showed that recall of positive and negative emotional words was better than that of non-emotional words in both visual fields. Recall of positive and negative emotional words was not different in left and right visual fields (RVFs) although the recall of non-emotional words was better in the RVF than in the left visual field (LVF). The differences in recall between emotional and non-emotional words was greater in the LVF than in the RVF. Experiment 2 used the more traditional method of perceptual identification following each visual half-field presentation of a single item. Perceptual identification was better in the RVF than the LVF in each word condition. There were no visual field differences in perceptual identification between emotional and non-emotional words, as there was for memory in Experiment 1. The results supported the hypothesis that explicit memory for emotional words was dependent more on the right hemisphere, whereas perception of both emotional and non-emotional words was more dependent on the left hemisphere.