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Dyslexia as a Neurodevelopmental Disorder and What Makes It Different from a Chess Disorder
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Brain Sci. 2019, 9(1), 9; https://doi.org/10.3390/brainsci9010009

Dyslexia: Still Not a Neurodevelopmental Disorder

1
Department of Special Needs Education, University of Oslo, Oslo 0318, Norway
2
Department of Educational Studies, Macquarie University, Sydney 2109, Australia
*
Author to whom correspondence should be addressed.
Received: 22 December 2018 / Accepted: 9 January 2019 / Published: 10 January 2019
(This article belongs to the Special Issue Dyslexia, Dysgraphia and Related Developmental Disorders)
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Abstract

We recently pointed out that there is no evidence to support the commonly held view that there is something wrong with the brains of children who have great difficulty learning to read. In response, it was argued that dyslexia should be considered to be a neurodevelopmental disorder because of its potential to adversely affect quality of life, and because there are differences between the brains of people with different levels of reading skill. We agree with these two points, but they are irrelevant to the issue in question, because neither establishes the critical notion of disrupted neurodevelopment; that is, a brain fault. Differences between groups do not imply that any individuals are abnormal, and calling a brain improperly developed on the basis of cultural issues has absurd implications. Even calling brains atypical is unfounded because reference to typicality hinges on knowledge of the relevant distributions, which is currently lacking. Moreover, there is at present no obvious role for neurology- or neuroscience-based input for the critical issue of the assessment and remediation of the reading difficulties themselves. We reiterate our conclusion that there is, at the moment, no credible foundation to support the claim that dyslexia is a neurodevelopmental disorder. View Full-Text
Keywords: dyslexia; reading difficulty; brain; neurodevelopmental disorder; neuroimaging dyslexia; reading difficulty; brain; neurodevelopmental disorder; neuroimaging
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Protopapas, A.; Parrila, R. Dyslexia: Still Not a Neurodevelopmental Disorder. Brain Sci. 2019, 9, 9.

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