语言的非典型侧化预测顶叶手势表征中的大脑不对称。
Atypical lateralization of language predicts cerebral asymmetries in parietal gesture representations.
机构信息
Department of Psychology, University of Oregon, Eugene, OR, USA.
出版信息
Neuropsychologia. 2011 Jun;49(7):1698-702. doi: 10.1016/j.neuropsychologia.2011.02.044. Epub 2011 Mar 4.
Abstract
Humans typically show left-hemisphere dominance both for language and manual gestures. If this reflects a dependence of these behaviors on a common cerebral specialization, then healthy left-handers with atypical organization of language should show a similar pattern for gesture. Consistent with this hypothesis, we report fMRI data indicating that sinistrals (5/15) with bilateral, or right-lateralized, language representations in inferior frontal cortex exhibit a similar atypical pattern in inferior parietal representations of familiar gestures.
摘要
人类通常在语言和手动手势方面都表现出左半球优势。如果这反映了这些行为依赖于共同的大脑专门化，那么语言组织异常的健康左撇子应该对手势表现出类似的模式。与这一假设一致，我们报告了 fMRI 数据，表明 5/15 名左侧（或右侧）额下回语言代表双侧或右侧化的非典型者在熟悉手势的下顶叶代表中表现出类似的非典型模式。
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