Movement detection thresholds reveal proprioceptive impairments in developmental dyslexia

Abstract Developmental dyslexia is associated with vision and hearing impairments. Whether these impairments are causes or comorbidities is controversial. Because both senses are heavily involved in reading, cognitive theories argue that sensory impairments are comorbidities that result from a lack...

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Autores principales:	Julie Laprevotte, Charalambos Papaxanthis, Sophie Saltarelli, Patrick Quercia, Jeremie Gaveau
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/77cafedaeabd45bcb1b11f9d0dc59fe5
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spelling	oai:doaj.org-article:77cafedaeabd45bcb1b11f9d0dc59fe52021-12-02T15:23:09ZMovement detection thresholds reveal proprioceptive impairments in developmental dyslexia10.1038/s41598-020-79612-42045-2322https://doaj.org/article/77cafedaeabd45bcb1b11f9d0dc59fe52021-01-01T00:00:00Zhttps://doi.org/10.1038/s41598-020-79612-4https://doaj.org/toc/2045-2322Abstract Developmental dyslexia is associated with vision and hearing impairments. Whether these impairments are causes or comorbidities is controversial. Because both senses are heavily involved in reading, cognitive theories argue that sensory impairments are comorbidities that result from a lack of reading practice. Sensory theories instead argue that this is sensory impairments that cause reading disabilities. Here we test a discriminant prediction: whether sensory impairments in developmental dyslexia are restrained to reading-related senses or encompass other senses. Sensory theories predict that all senses are affected, whereas, according to the lack of reading practice argument, cognitive theories predict that only reading-related senses are affected. Using a robotic ergometer and fully automatized analyses, we tested proprioceptive acuity in seventeen dyslexic children and seventeen age-matched controls on a movement detection task. Compared to controls, dyslexics had higher and more variable detection thresholds. For the weakest proprioceptive stimuli, dyslexics were twice as long and twice as variable as controls. More, proprioceptive acuity strongly correlated with reading abilities, as measured by blind cognitive evaluations. These results unravel a new sensory impairment that cannot be attributed to a lack of reading practice, providing clear support to sensory theories of developmental dyslexia. Protocol registration: This protocol is part of the following registration, ClinicalTrials.gov Identifier: NCT03364010; December 6, 2017.Julie LaprevotteCharalambos PapaxanthisSophie SaltarelliPatrick QuerciaJeremie GaveauNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-7 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Julie Laprevotte Charalambos Papaxanthis Sophie Saltarelli Patrick Quercia Jeremie Gaveau Movement detection thresholds reveal proprioceptive impairments in developmental dyslexia
description	Abstract Developmental dyslexia is associated with vision and hearing impairments. Whether these impairments are causes or comorbidities is controversial. Because both senses are heavily involved in reading, cognitive theories argue that sensory impairments are comorbidities that result from a lack of reading practice. Sensory theories instead argue that this is sensory impairments that cause reading disabilities. Here we test a discriminant prediction: whether sensory impairments in developmental dyslexia are restrained to reading-related senses or encompass other senses. Sensory theories predict that all senses are affected, whereas, according to the lack of reading practice argument, cognitive theories predict that only reading-related senses are affected. Using a robotic ergometer and fully automatized analyses, we tested proprioceptive acuity in seventeen dyslexic children and seventeen age-matched controls on a movement detection task. Compared to controls, dyslexics had higher and more variable detection thresholds. For the weakest proprioceptive stimuli, dyslexics were twice as long and twice as variable as controls. More, proprioceptive acuity strongly correlated with reading abilities, as measured by blind cognitive evaluations. These results unravel a new sensory impairment that cannot be attributed to a lack of reading practice, providing clear support to sensory theories of developmental dyslexia. Protocol registration: This protocol is part of the following registration, ClinicalTrials.gov Identifier: NCT03364010; December 6, 2017.
format	article
author	Julie Laprevotte Charalambos Papaxanthis Sophie Saltarelli Patrick Quercia Jeremie Gaveau
author_facet	Julie Laprevotte Charalambos Papaxanthis Sophie Saltarelli Patrick Quercia Jeremie Gaveau
author_sort	Julie Laprevotte
title	Movement detection thresholds reveal proprioceptive impairments in developmental dyslexia
title_short	Movement detection thresholds reveal proprioceptive impairments in developmental dyslexia
title_full	Movement detection thresholds reveal proprioceptive impairments in developmental dyslexia
title_fullStr	Movement detection thresholds reveal proprioceptive impairments in developmental dyslexia
title_full_unstemmed	Movement detection thresholds reveal proprioceptive impairments in developmental dyslexia
title_sort	movement detection thresholds reveal proprioceptive impairments in developmental dyslexia
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/77cafedaeabd45bcb1b11f9d0dc59fe5
work_keys_str_mv	AT julielaprevotte movementdetectionthresholdsrevealproprioceptiveimpairmentsindevelopmentaldyslexia AT charalambospapaxanthis movementdetectionthresholdsrevealproprioceptiveimpairmentsindevelopmentaldyslexia AT sophiesaltarelli movementdetectionthresholdsrevealproprioceptiveimpairmentsindevelopmentaldyslexia AT patrickquercia movementdetectionthresholdsrevealproprioceptiveimpairmentsindevelopmentaldyslexia AT jeremiegaveau movementdetectionthresholdsrevealproprioceptiveimpairmentsindevelopmentaldyslexia
_version_	1718387332541841408

Movement detection thresholds reveal proprioceptive impairments in developmental dyslexia

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