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Efforful verb recollection drives beta suppression in mesial frontal regions involved in action initiation

Anna A. Pavlova, Anna V. Butorina, Anastasia Y. Nikolaeva, Andrey O. Prokofyev, Maxim A. Ulanov, Denis P. Bondarev, Tatiana A. Stroganova
doi: https://doi.org/10.1101/473355
Anna A. Pavlova
1MEG-Center, Moscow State University of Psychology and Education, Moscow, Russian Federation
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Anna V. Butorina
1MEG-Center, Moscow State University of Psychology and Education, Moscow, Russian Federation
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Anastasia Y. Nikolaeva
1MEG-Center, Moscow State University of Psychology and Education, Moscow, Russian Federation
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Andrey O. Prokofyev
1MEG-Center, Moscow State University of Psychology and Education, Moscow, Russian Federation
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Maxim A. Ulanov
1MEG-Center, Moscow State University of Psychology and Education, Moscow, Russian Federation
2Centre for Cognition and Decision making, National Research University Higher School of Economics, Moscow, Russian Federation
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Denis P. Bondarev
1MEG-Center, Moscow State University of Psychology and Education, Moscow, Russian Federation
3National Research Center “Kurchatov Institute”, Moscow, Russian Federation
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Tatiana A. Stroganova
1MEG-Center, Moscow State University of Psychology and Education, Moscow, Russian Federation
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Abstract

Whether the motor cortex activation accompanying concrete verbs comprehension is necessary for verbs conceptual processing is still a hotly debated topic in the literature. Answering this question, we examined to what extent the more difficult access to verb semantics requires an additional engagement of cortical motor system in verb generation task. Using power suppression of MEG beta oscillations (15-30 Hz) as an index of sensorimotor activation, we presented to our participants the noun cues which either were strongly associated with a single verb and prompted the fast and effortless verb retrieval, or were weakly associated with multiple verbs and were more difficult to respond to. A whole-brain analysis of beta suppression revealed that the only cortical regions sensitive to the difficulty of semantic access were the higher order motor areas on the medial and lateral surfaces of the frontal lobe. This differential activation of cortical motor system accompanied effortful verb retrieval and preceded the preparation of vocal response for more than 500 milliseconds. Since the mid-frontal frontal brain areas are involved in maintaining abstract representations of actions during their initiating and planning, we argue that our finding supports the view that motor associations contribute to retrieval of verb semantics.

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The copyright holder for this preprint is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under a CC-BY-NC-ND 4.0 International license.
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Posted November 19, 2018.
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Efforful verb recollection drives beta suppression in mesial frontal regions involved in action initiation
Anna A. Pavlova, Anna V. Butorina, Anastasia Y. Nikolaeva, Andrey O. Prokofyev, Maxim A. Ulanov, Denis P. Bondarev, Tatiana A. Stroganova
bioRxiv 473355; doi: https://doi.org/10.1101/473355
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Efforful verb recollection drives beta suppression in mesial frontal regions involved in action initiation
Anna A. Pavlova, Anna V. Butorina, Anastasia Y. Nikolaeva, Andrey O. Prokofyev, Maxim A. Ulanov, Denis P. Bondarev, Tatiana A. Stroganova
bioRxiv 473355; doi: https://doi.org/10.1101/473355

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