Semantic category priming in the left cerebral hemisphere
Semantic category priming in the left cerebral hemisphere
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DOI：
10.1016/0028-3932(95)00144-1
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发表时间：
1996-05-01
期刊：
影响因子：
2.6
通讯作者：
Coney, J
中科院分区：
文献类型：
--
作者：
Abernethy, M;Coney, J
在两个启动实验中，启动词和目标词被独立地投射到左或右视野（LVF或RVF），研究了语义代码在大脑半球的表征和这些代码的半球间通信。非关联类别样本采用相关对词汇决策任务和分离的刺激起始时间为250毫秒在实验1和450毫秒在实验2。两个实验都获得启动效应时，引发剂和目标都投射到RVF，但不是LVF。预测到RVF的语义类别启动也促进了对LVF目标的反应，但没有LVF-RVF启动。这表明语义类别信息是从左半球传递到右半球的，而不是相反。这一结果与语义范畴在左半球表征的观点相一致。
The representation of semantic codes in the cerebral hemispheres and the interhemispheric communication of these codes, was investigated in two priming experiments where prime and target words were independently projected to the left or right visual fields (LVF or RVF). Nonassociated category exemplars were employed as related pairs in a lexical decision task and separated by a stimulus onset asynchrony of 250 msec in Experiment 1 and 450 msec in Experiment 2. Both experiments obtained priming effects when primes and targets were both projected to the RVF, but not the LVF. Semantic category primes projected to the RVF also facilitated responses to LVF targets, but no LVF-RVF priming was obtained. This suggests that semantic category information is relayed from left to right hemisphere, but not vice versa. The results are consistent with the view that semantic categories are represented in the left hemisphere.