Volumetric and Surface Characteristics of Gray Matter in Adult Dyslexia and Dyscalculia

In this study, we used a unique design including adults with dyslexia, dyscalculia, both disorders and controls, to explore differences in gray matter characteristics across groups. Specifically, we examined whether dyslexia, dyscalculia, or their comorbid manifestation could be related to volumetric and surface characteristics of gray matter, using voxel-based and surface-based morphometry. We demonstrate with Bayesian analyses that the present data favor the null model of no differences between groups across the brain, a result that is in line with recent findings in this field of research. Importantly, we provide detailed statistical maps to enable robust assessment of our findings, and to promote cumulative evaluation of the evidence. Together, these findings suggest that gray matter differences associated with dyslexia and dyscalculia might not be as reliable as suggested by previous literature, with important implications for our understanding of these disorders.
Source: Neuropsychologia - Category: Neurology Source Type: research

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Conclusion: despite the significant number of norms, the current Brazilian legislation does not allow for real school inclusion. Individuals with communication disorders do not have a specific legislation that could guide the peculiarities of each disorder, as well as their sp ecial educational needs. Thus, it was concluded that these individuals need legal support respecting their specificities, to allow their effective school inclusion.RESUMO Objetivo: verificar se a legisla ção brasileira vigente garante a efetiva inclusão escolar do indivíduo com distúrbios da comunicaçã...
Source: Revista CEFAC - Category: Speech-Language Pathology Source Type: research
Thread Starter UK medical schools- extra time policies Follow 6 hours ago 6h ago I have already applied for medicine (2019 entry) and am waiting to hear back from my unis after interviews. I already get 25% extra time in my exams because I have dyslexia but I'm currently really struggling to finish any p...
Source: The Student Room - Category: Universities & Medical Training Authors: Tags: Medicine Source Type: forums
Publication date: Available online 12 March 2019Source: Developmental Cognitive NeuroscienceAuthor(s): Gabrielle-Ann A. Torre, Guinevere F. EdenAbstractReading is explicitly taught and foreshadows academic and vocational success. Studies comparing typical readers to those with developmental dyslexia have identified anatomical brain differences in bilateral temporo-parietal cortex, left temporo-occipital cortex, and bilateral cerebellum. Yet, it is unclear whether linear relationships exist between these brain structures and single real word reading ability in the general population. If dyslexia represents the lower end of ...
Source: Developmental Cognitive Neuroscience - Category: Neuroscience Source Type: research
The Parliamentary and Health Service Ombudsman may have to pay damages to a dyslexic former employee after a tribunal decided it had discriminated against a disabled worker.
Source: HSJ - Category: UK Health Source Type: news
Publication date: July 2019Source: Journal of Experimental Child Psychology, Volume 183Author(s): Hélène Lafontaine, Régine KolinskyAbstractWe aimed at investigating whether typical and atypical young readers extract vertices (viewpoint-invariant line junctions) in reading, as has been shown for fluent adult readers. In an identification task, we presented partly deleted printed letters, words, and pseudowords, preserving either the vertices or the midsegments of the letters. This allowed assessing the occurrence of a vertex effect, that is, more errors when vertices are partly removed, keeping the mid...
Source: Journal of Experimental Child Psychology - Category: Child Development Source Type: research
ConclusionThese results suggest a pattern of hypo-activation of the HPA axis to psychosocial stress in children with dyslexia.
Source: Trends in Neuroscience and Education - Category: Neuroscience Source Type: research
2019 marks the 500th anniversary of the death of Leonardo da Vinci, a man so talented in arts and science as to be arguably the most creative person who ever lived. His biographer, Giorgio Vasari called him, “Largita da Dio”1 (a gift from God), and half-a-millennium later we still ponder what made him so unique. The recent observation that Leonardo might have suffered from intermittent exotropia2 sheds some light on his artistic genius, since ocular misalignment is often linked to talent in the visu al arts, but also raises the possibility of dyslexia, since this too can result from misalignment.
Source: The American Journal of Medicine - Category: General Medicine Authors: Tags: Medical Humanities Source Type: research
on Á Abstract Both intact and deficient neural processing of faces has been found in dyslexic readers. Similarly, behavioral studies have shown both normal and abnormal face processing in developmental dyslexia. We tested whether dyslexic adults are impaired in tests of own-race and other-race face recognition. As both face and word recognition rely considerably on visual expertise, we wished to investigate whether face recognition problems of dyslexic readers might stem from difficulties with experience-driven expert visual processing. We utilized the finding that people tend to be worse at discriminating ...
Source: Vision Research - Category: Opthalmology Authors: Tags: Vision Res Source Type: research
[SAnews.gov.za] Soweto is the home of the first ever - multimedia centre for children with dyslexia in South Africa.
Source: AllAfrica News: Health and Medicine - Category: African Health Source Type: news
(Technische Universit ä t Dresden) Neuroscientist Professor Katharina von Kriegstein from TU Dresden and an international team of experts show in a recently published study that people with dyslexia have a weakly developed structure that is not located in the cerebral cortex, but at a subcortical processing stage; namely the white matter connectivity between the left auditory motion-sensitive planum temporale (mPT) and the left auditory thalamus (medial geniculate body, MGB).
Source: EurekAlert! - Social and Behavioral Science - Category: International Medicine & Public Health Source Type: news
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