Joss Laura Motyka, Virtue Sandra
DePaul University, Chicago, IL 60614, USA.
Laterality. 2009 Jul;14(4):345-61. doi: 10.1080/13576500802434593. Epub 2008 Oct 31.
In a classic semantic priming study (Beeman et al., 1994), participants showed a naming advantage for strongly related targets compared to weakly related targets in the left hemisphere, whereas no difference in naming advantage was found between strongly and weakly related targets in the right hemisphere. However, it is unclear how the type of task and individual differences influence this hemispheric activation. In the current study participants completed a lexical decision task when presented with strongly, weakly, and unrelated words in each visual field-hemisphere. A left hemisphere advantage was evident for strongly and weakly related words compared to unrelated words and a right hemisphere advantage was evident for strongly related words compared to weakly related and unrelated words. Additionally, high working memory capacity participants responded more accurately to strongly related words than weakly or unrelated words in the right hemisphere, whereas low working memory capacity participants showed no difference between these conditions in the right hemisphere. Thus, the type of semantic priming task and working memory capacity seem to influence the hemispheric processing of strongly and weakly related information.
在一项经典的语义启动研究（比曼等人，1994年）中，与弱相关目标相比，参与者在左半球对强相关目标表现出命名优势，而在右半球，强相关目标和弱相关目标之间未发现命名优势差异。然而，尚不清楚任务类型和个体差异如何影响这种半球激活。在当前研究中，当在每个视野-半球呈现强相关、弱相关和不相关单词时，参与者完成了一项词汇判断任务。与不相关单词相比，强相关和弱相关单词在左半球优势明显；与弱相关和不相关单词相比，强相关单词在右半球优势明显。此外，高工作记忆容量的参与者在右半球对强相关单词的反应比弱相关或不相关单词更准确，而低工作记忆容量的参与者在右半球的这些条件之间没有差异。因此，语义启动任务的类型和工作记忆容量似乎会影响强相关和弱相关信息的半球处理。
