A piece of the action: modulation of sensory-motor regions by action idioms and metaphors.
A piece of the action: modulation of sensory-motor regions by action idioms and metaphors.
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DOI：
10.1016/j.neuroimage.2013.07.044
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发表时间：
2013-12
期刊：
影响因子：
5.7
通讯作者：
Seidenberg MS
中科院分区：
文献类型：
--
作者：
Desai RH;Conant LL;Binder JR;Park H;Seidenberg MS
近年来，概念系统利用感觉和运动系统的想法得到了相当多的实验支持。感觉运动和概念系统之间的紧密耦合是否受到环境或任务要求等因素的调节是一个有争议的问题。在这里，我们在功能磁共振成像研究中通过在三种不同类型的句子中使用动作动词来测试这种耦合的上下文敏感性：字面动作、恰当但非惯用的动作隐喻和动作习语。抽象句子作为基线。结果显示，感觉运动区域参与了字面和隐喻动作句子，但不参与惯用动作句子。可以看到从抽象句子到惯用句子再到隐喻句子再到字面句子的感觉运动激活增加的趋势。这些结果支持渐进的抽象过程，随着意义的抽象性和约定化的增加，对感觉运动系统的依赖减少，突出了语义处理的上下文敏感性质。
The idea that the conceptual system draws on sensory and motor systems has received considerable experimental support in recent years. Whether the tight coupling between sensory-motor and conceptual systems is modulated by factors such as context or task demands is a matter of controversy. Here, we tested the context sensitivity of this coupling by using action verbs in three different types of sentences in an fMRI study: literal action, apt but non-idiomatic action metaphors, and action idioms. Abstract sentences served as a baseline. The result showed involvement of sensory-motor areas for literal and metaphoric action sentences, but not for idiomatic ones. A trend of increasing sensory-motor activation from abstract to idiomatic to metaphoric to literal sentences was seen. These results support a gradual abstraction process whereby the reliance on sensory-motor systems is reduced as the abstractness of meaning as well as conventionalization is increased, highlighting the context sensitive nature of semantic processing.
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