Please use this identifier to cite or link to this item:
Title: Neurocognitive signatures of phonemic sequencing in expert backward speakers
Author: Torres Prioris, María José
López Barroso, Diana
Camara Mancha, Estela
Fittipaldi, Sol
Sedeño, Lucas
Ibáñez, Agustín
Berthier, Marcelo L.
García, Adolfo M.
Keywords: Neurolingüística
Issue Date: 30-Jun-2020
Publisher: Nature Publishing Group
Abstract: Despite its prolific growth, neurolinguistic research on phonemic sequencing has largely neglected the study of individuals with highly developed skills in this domain. To bridge this gap, we report multidimensional signatures of two experts in backward speech, that is, the capacity to produce utterances by reversing the order of phonemes while retaining their identity. Our approach included behavioral assessments of backward and forward speech alongside neuroimaging measures of voxel-based morphometry, diffusion tensor imaging, and resting-state functional connectivity. Relative to controls, both backward speakers exhibited behavioral advantages for reversing words and sentences of varying complexity, irrespective of working memory skills. These patterns were accompanied by increased grey matter volume, higher mean diffusivity, and enhanced functional connectivity along dorsal and ventral stream regions mediating phonological and other linguistic operations, with complementary support of areas subserving associative-visual and domain-general processes. Still, the specific loci of these neural patterns differed between both subjects, suggesting individual variability in the correlates of expert backward speech. Taken together, our results offer new vistas on the domain of phonemic sequencing, while illuminating neuroplastic patterns underlying extraordinary language abilities.
Note: Reproducció del document publicat a:
It is part of: Scientific Reports, 2020, vol. 10
Related resource:
Appears in Collections:Articles publicats en revistes (Institut d'lnvestigació Biomèdica de Bellvitge (IDIBELL))

Files in This Item:
File Description SizeFormat 
Torres-PriorisMJ.pdf5.13 MBAdobe PDFView/Open

This item is licensed under a Creative Commons License Creative Commons