Neurophysiological distinction of verb categories
Neurophysiological distinction of verb categories
复制标题
动词类别的神经生理学区别
DOI：
10.1097/00001756-200008210-00036
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发表时间：
2000
期刊：
影响因子：
1.7
通讯作者：
F. Hummel
中科院分区：
文献类型：
--
作者：
F. Pulvermüller;M. Härle;F. Hummel
使用高分辨率EEG记录动作动词子类别的神经生理脑反应。开始240毫秒后，词发病，地形图的事件相关电位区分动词指的是不同的动作类型。电流源密度估计显示，动词指的是执行与腿（踢）的动作产生的活动焦点接近顶点，以上的运动领域参与编程的腿部运动，而facelorrelated动词（说话）产生的焦点在左侧记录，以上的大脑外侧裂区和皮质表示的脸和发音。这表明，即使在细粒度的词汇语义子类别之间，涉及文字处理的大脑机制也会有所不同，并且在文字开始后的第一个四分之一秒内就已经存在。我们提供了一个解释的数据在神经生物学方面。
Neurophysiological brain responses to subcategories of action verbs were recorded using high resolution EEG. Starting 240 ms after word onset, topographies of event-related potentials distinguished between verbs referring to different action types. Current source density estimates revealed that verbs referring to actions executed with the legs (to kick) produced an activity focus close to the vertex, above motor areas involved in the programming of leg movements, whereas facerelated verbs (to speak) produced a focus at left-lateral recordings, above perisylvian areas and the cortical representation of the face and articulators. This is evidence that brain mechanisms involved in word processing can differ even between fine-grained lexico-semantic subcategories and already within the first quarter of a second after word onset. We offer an explanation of the data in neurobiological terms.