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首页> 外文期刊>Journal of speech, language, and hearing research: JSLHR >Age-related variability in cortical activity during language processing.
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Age-related variability in cortical activity during language processing.

机译：语言处理过程中皮质活动的年龄相关变异性。

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PURPOSE: The present study investigated the extent of cortical activity during overt picture naming using functional magnetic resonance imaging (fMRI). METHOD: Participants comprised 20 healthy, adult participants with ages ranging from 20 to 82 years. While undergoing fMRI, participants completed a picture-naming task consisting of 60 high-frequency nouns. RESULTS: Linear regression analysis revealed a positive relationship between age and cortical activation intensity in Broca's and Wernicke's areas as well as the right-hemisphere homologue of Broca's area. In contrast, neural activity in the anterior cingulate gyrus, an area thought to be involved in attentional processing, did not increase as a function of age. CONCLUSIONS: These findings suggest age-related increases in cortical activation during simple language tasks, such as picture naming, in brain areas typically associated with language processing.
机译：目的：本研究使用功能磁共振成像（fMRI）研究了在公开图片命名过程中皮质活动的程度。方法：参与者包括20名健康的成人参与者，年龄范围从20到82岁。在进行功能磁共振成像时，参与者完成了由60个高频名词组成的图片命名任务。结果：线性回归分析显示，年龄与Broca和Wernicke地区的皮质激活强度以及Broca地区的右半球同系物之间呈正相关。相反，前扣带回中的神经活动并没有随着年龄的增长而增加，前扣带回被认为与注意力加工有关。结论：这些发现表明在与语言处理相关的大脑区域中，在简单的语言任务（例如图片命名）过程中，与年龄相关的皮质激活增加。

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