期刊
JOURNAL OF NEUROPSYCHOLOGY
卷 16, 期 2, 页码 389-406出版社
WILEY
DOI: 10.1111/jnp.12270
关键词
action re-enactment; embodiment; language processing; motor responses; semantics; sensorimotor system
The processing of observed actions and verbs expressing motor content is supported by the same neural mechanisms, suggesting embodiment. Hand motor responses were slower during the observation of hand actions and processing of hand-related verbs compared to foot actions and related verbs, indicating a modulation of hand motor responses regardless of modality.
It is well-accepted that processing observed actions involves at some extent the same neural mechanisms responsible for action execution. More recently, it has been forwarded that also the processing of verbs expressing a specific motor content is subserved by the neural mechanisms allowing individuals to perform the content expressed by that linguistic material. This view is also known as embodiment and contrasts with a more classical approach to language processing that considers it as amodal. In the present study, we used a go/no-go paradigm, in which participants were requested to respond to real words and pictures and refrain from responding when presented stimuli were pseudowords and scrambled images. Real stimuli included pictures depicting hand- and foot-related actions and verbs expressing hand- and foot-related actions. We, therefore, directly compared the modulation of hand motor responses during the observation of actions and the presentation of verbs, expressing actions in the same category. The results have shown that participants gave slower hand motor responses during the observation of hand actions and the processing of hand-related verbs as than observed foot actions and related verbs. These findings support embodiment showing that whatever the modality of presentation (observed action or verb), the modulation of hand motor responses was similar, thus suggesting that processing seen actions and related verbs shares common mechanisms most likely involving the motor system and the underlying motor experience.
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