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Title: Early response competition over the motor cortex underlies proactive control of error correction
Author: Rodríguez Herreros, Borja
Amengual, Julià L.
Vázquez‑Anguiano, Jimena Lucrecia
Ionta, Silvio
Miniussi, Carlo
Cunillera, Toni
Keywords: Escorça cerebral
Estimulació del cervell
Cerebral cortex
Brain stimulation
Issue Date: 2-Jun-2022
Publisher: Nature Publishing Group
Abstract: Response inhibition is a fundamental brain function that must be flexible enough to incorporate proactive goal-directed demands, along with reactive, automatic and well consolidated behaviors. However, whether proactive inhibitory processes can be explained by response competition, rather than by active top-down inhibitory control, remains still unclear. Using a modified version of the Eriksen flanker task, we examined the behavioral and electrophysiological correlates elicited by manipulating the degree of inhibitory control in a task that involved the fast amendment of errors. We observed that restraining or encouraging the correction of errors did not affect the behavioral and neural correlates associated to reactive inhibition. We rather found that an early, sustained and bilateral activation, of both the correct and the incorrect response, was required for an effective proactive inhibitory control. Selective unilateral patterns of response preparation were instead associated with defective response suppression. Our results provide behavioral and electrophysiological evidence of a simultaneous dual pre-activation of two motor commands, likely underlying a global operating mechanism suggesting competition or lateral inhibition to govern the amendment of errors. These findings are consistent with the response inhibitory processes already observed in speed accuracy tradeoff studies, and hint at a decisive role of early response competition to determine the success of multiple-choice action selection.
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It is part of: Scientific Reports, 2022, num. 12, p. 9232
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ISSN: 2045-2322
Appears in Collections:Articles publicats en revistes (Cognició, Desenvolupament i Psicologia de l'Educació)

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