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- Aravena, Pia; Delevoye, Yvonne; Deprez, Viviane; Cheylus, Anne; Paulignan, Yves; Frak, Victor Frak et Nazir, Tatjana (2012). « Grip Force Reveals the Context Sensitivity of Language-Induced Motor Activity during “Action Words ». PLoS One, 7(12), pp. 1-8.
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http://www.plosone.org/article/info:doi/10.1371/jo [...]
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doi:10.1371/journal.pone.0050287
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Pia Aravena et al., « Grip Force Reveals the Context Sensitivity of Language-Induced Motor Activity during “Action Words », UQAM Archipel : articles scientifiques, ID : 10670/1.wxoitq
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Studies demonstrating the involvement of motor brain structures in language processing typically focus on time windows beyond the latencies of lexical-semantic access. Consequently, such studies remain inconclusive regarding whether motor brain structures are recruited directly in language processing or through post-linguistic conceptual imagery. In the present study, we introduce a grip-force sensor that allows online measurements of language-induced motor activity during sentence listening. We use this tool to investigate whether language-induced motor activity remains constant or is modulated in negative, as opposed to affirmative, linguistic contexts. Our findings demonstrate that this simple experimental paradigm can be used to study the online crosstalk between language and the motor systems in an ecological and economical manner. Our data further confirm that the motor brain structures that can be called upon during action word processing are not mandatorily involved; the crosstalk is asymmetrically governed by the linguistic context and not vice versa.