However, until recently, the literature has been relatively silent on the candidate role of the cerebellum in this function, perhaps due in part to the tendency in many functional MRI studies to remove the cerebellum in its entirety prior to statistical analysis. Previous studies looking into the control of verbal interference have highlighted the involvement of the left caudate during an inhibitory control task based on colour naming and left inferior or middle frontal regions when bilinguals were making decisions on a semantic written task in their native language. The aim of the current study was to use MRI structural imaging to investigate the neural correlates of verbal interference during speech comprehension in monolingual and bilingual populations, with specific focus on the cerebellum. This ability could be particularly beneficial for people who have to monitor, process and communicate in more than one language (i.e., the bilingual population). The funders had no role in the design or any other components of this study.Ĭompeting interests: The authors have declared that no competing interests exist.Īuditory control of interference is the cognitive ability to inhibit the processing of concurrent irrelevant auditory stimuli. ![]() ![]() This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.ĭata Availability: The data are available on Figshare (DOI: 10.6084/m9.figshare.12024795).įunding: This work was supported by the Leverhulme Trust UK, obtained by RF and PB. Received: DecemAccepted: MaPublished: April 21, 2020Ĭopyright: © 2020 Filippi et al. PLoS ONE 15(4):Įditor: Claudio Mulatti, University of Trento, ITALY Our findings suggest that multilanguage acquisition mediates regional involvement within the language network, conferring enhanced functional plasticity within structures (including the paravermis) in the service of control of linguistic interference.Ĭitation: Filippi R, Periche Tomas E, Papageorgiou A, Bright P (2020) A role for the cerebellum in the control of verbal interference: Comparison of bilingual and monolingual adults. This effect was observed when the linguistic interference was presented in an unfamiliar language (Greek) but not when presented in the familiar language (English). ![]() There was no group difference in performance but there was a significant group effect in grey matter sensitivity to task performance in our region of interest: stronger sensitivity in the paravermis in bilinguals compared to monolinguals in accuracy performance in the high (relative to low) verbal interference condition. Using voxel-based morphometry, our primary goal was to identify and explore differences in regional patterns of grey matter sensitivity to performance on the sentence interpretation task, controlling for group variability in age, nonverbal reasoning and vocabulary knowledge. We compare brain structure sensitivity to verbal interference control across two groups, English monolingual (N = 41) and multilingual (N = 46) adults. We evaluate brain structure sensitivity to verbal interference in a sentence interpretation task, building on previously reported evidence that those with better control of verbal interference show higher grey matter density in the posterior paravermis of the right cerebellum.
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