Kavé Gitit, Gavrieli Ronit, Mashal Nira
a Department of Education and Psychology , The Open University , Ra'anana 43537 , Israel.
Laterality. 2014;19(6):705-17. doi: 10.1080/1357650X.2014.905584. Epub 2014 Apr 8.
Thirty younger (age 20-30) and 30 older (age 69-85) right-handed Hebrew speakers performed a semantic judgement task while processing literal word pairs and conventional metaphors, presented in the divided visual field paradigm. Older adults responded more accurately to conventional metaphors in the right visual field/left hemisphere versus the left visual field/right hemisphere, whereas younger adults showed no lateralization. Vocabulary scores cancelled group differences in lateralization. An additional lexical decision task replicated the main finding of left-hemisphere lateralization in older but not in younger participants. We suggest that accumulated knowledge increases left-hemisphere lateralization on tasks of language comprehension in older relative to younger adults.
30名较年轻的（年龄在20 - 30岁之间）和30名较年长的（年龄在69 - 85岁之间）以希伯来语为母语的右利手者，在采用分开视野范式呈现的字面词对和传统隐喻的情况下，执行了一项语义判断任务。与左视野/右半球相比，年长者对右视野/左半球中的传统隐喻反应更准确，而年轻者则未表现出偏侧化。词汇分数消除了偏侧化方面的组间差异。一项额外的词汇判断任务重复了年长者而非年轻参与者左半球偏侧化的主要发现。我们认为，相对于年轻人，年长者积累的知识增加了在语言理解任务上的左半球偏侧化。
