Brain basis of communicative actions in language.
Brain basis of communicative actions in language.
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DOI：
10.1016/j.neuroimage.2015.10.055
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发表时间：
2016-01-15
期刊：
影响因子：
5.7
通讯作者：
Pulvermüller F
中科院分区：
文献类型：
--
作者：
Egorova N;Shtyrov Y;Pulvermüller F
虽然语言是社会交往中交流的关键工具，但大多数语言神经科学的研究都集中在词和句子等语言结构上。本文利用功能磁共振成像(FMRI)研究言语行为的神经关联，即使用语言进行的动作。参与者观看了视频，在视频中，相同的批判性话语在不同的交际环境中被使用，以命名对象，或向交流伙伴请求对象。理解关键话语的请求伴随着双侧运动前区、左侧额叶下部和已知的支持动作相关知识和社会互动知识的顶叶皮质区域的激活。然而，命名激活了左角回，该回与批判性话语中提到的有关词形和相关参照物体的信息联系在一起。这些发现表明，将话语理解为不同的交际行为反映在不同的大脑激活模式中，从而表明不同的言语行为类型具有不同的神经基础。用fMRI研究命名和请求理解的神经相关。命名激活了与参照语义加工相关的左角回。REQUEST激活了额叶下部、运动前和顶叶皮质以进行动作序列预测。言语行为理解依赖于意图的加工和对动作序列结构的预测。
Although language is a key tool for communication in social interaction, most studies in the neuroscience of language have focused on language structures such as words and sentences. Here, the neural correlates of speech acts, that is, the actions performed by using language, were investigated with functional magnetic resonance imaging (fMRI). Participants were shown videos, in which the same critical utterances were used in different communicative contexts, to Name objects, or to Request them from communication partners. Understanding of critical utterances as Requests was accompanied by activation in bilateral premotor, left inferior frontal and temporo-parietal cortical areas known to support action-related and social interactive knowledge. Naming, however, activated the left angular gyrus implicated in linking information about word forms and related reference objects mentioned in critical utterances. These findings show that understanding of utterances as different communicative actions is reflected in distinct brain activation patterns, and thus suggest different neural substrates for different speech act types. Neural correlates of understanding of Naming and Requesting were studied with fMRI. Naming activated the left angular gyrus relevant for referential semantic processing. Requests activated the inferior frontal, premotor and temporo-parietal cortices for action sequence prediction. Speech act understanding relies on processing of intentions and predicting action sequence structure.