Chiarello C, Senehi J, Nuding S
Brain Lang. 1987 May;31(1):43-60. doi: 10.1016/0093-934x(87)90060-5.
We investigated whether abstract and concrete words would be differentially effective in priming lexical decisions to words presented to the right and left visual fields. Under low probability prime conditions, where priming is presumed to reflect a spreading activation process within the lexicon, equivalent priming was obtained in each VF for both abstract and concrete primes. However, when the same words were used in a high probability prime paradigm, abstract primes were much less effective in the LVF than in the RVF, while priming with concrete words did not differ across the visual fields. Since such priming may reflect a postlexical semantic integration stage, the results imply that hemisphere differences for processing abstract and concrete words may arise only after lexical access has occurred, when semantic information retrieved from the lexicon becomes available for subsequent processing.
我们研究了抽象词和具体词在启动对呈现于右视野和左视野的单词的词汇判断时是否具有不同的效果。在低概率启动条件下，启动被假定反映了词汇内的扩散激活过程，对于抽象和具体启动词，每个视野都获得了等效的启动效果。然而，当相同的单词用于高概率启动范式时，抽象启动词在左视野中的效果远不如在右视野中，而具体词的启动在两个视野中没有差异。由于这种启动可能反映了词汇后语义整合阶段，结果表明，处理抽象和具体词的半球差异可能仅在词汇通达之后出现，此时从词汇中检索到的语义信息可用于后续处理。
