Medical Journal, Health Articles

AbstractThe aim of this article is to report on the importance and challenges of a time‐resolved and spatio‐temporal analysis of fMRI data from complex cognitive processes and associated disorders using a study on developmental dyscalculia (DD). Participants underwent fMRI while judging the incorrectness of multiplication results, and the data were analyzed using a sequence of methods, each of which progressively provided more a detailed picture of the spatio‐temporal aspect of this disease. Healthy subjects and subjects with DD performed alike behaviorally, though they exhibited parietal disparities using traditional “voxel‐based” group analyses. Further and more detailed differences, however, surfaced with a “time‐resolved” examination of the neural responses during the…

Original post by International Journal of Imaging Systems and Technology

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Individuals with developmental dyslexia (DD) show a disruption in posterior left-hemispheric neural networks during phonological processing. Additionally, compensatory mechanisms in children and adults with DD have been located within frontal brain areas. However, it remains unclear when and how differences in posterior left-hemispheric networks manifest and whether compensatory mechanisms have already started to develop in the prereading brain. Here we investigate functional networks during phonological processing in 36 prereading children with a familial risk for DD (n = 18, average age = 66.50 mo) compared with age and IQ-matched controls (n = 18; average age = 65.61 mo). Functional neuroimaging results reveal reduced activation in prereading children with a family-history of DD (FHD+),…

Original post by Proceedings of the National Academy of Sciences

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Conclusions  The current study, therefore, is an attempt to identify children with learning disorders and explore the prevalence of the
problem and etiological factors e.g., family environment, social factors and developmental issues of child and associated co-morbidities. More studies with larger
sample size should be undertaken to get accurate picture of these disorders.There is also need for some community based programme
to raise the level of awareness and knowledge about these disorders in general population.

Content Type Journal ArticleCategory Original ArticlePages 1-5DOI 10.1007/s12098-012-0699-7Authors
Madan Gopal Choudhary, Department of Pediatric Medicine, S.P. Medical College and AG Hospital, Bikaner, 334001 Rajasthan, IndiaAdeesh Jain, Department of Ped…

Original post by Indian Journal of Pediatrics

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(Aalto University) Finnish scientists have found that a rare dyslexia-linked genetic variant of the ROBO1 gene decreases normal crossing of auditory pathways in the human brain. The weaker the expression of the gene is, the more abnormal is the midline crossing. The results link, for the first time, a dyslexia-susceptibility gene to a specific sensory function of the human brain. (Source: EurekAlert! – Medicine and Health)

Original post by EurekAlert! – Medicine and Health

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(Ivanhoe Newswire) — Approximately five to seventeen percent of children are diagnosed with developmental dyslexia, dyslexia that is not caused by brain trauma. (Source: Medical Headlines From Ivanhoe.com)

Original post by Medical Headlines From Ivanhoe.com

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This study sought to examine factors that are predictive of future developmental dyslexia among a group of 5‐year‐old Chinese children at risk for dyslexia, including 62 children with a sibling who had been previously diagnosed with dyslexia and 52 children who manifested clinical at‐risk factors in aspects of language according to testing by paediatricians. The age‐5 performances on various literacy and cognitive tasks, gender and group status (familial risk or language delayed) were used to predict developmental dyslexia 2 years later using logistic regression analysis. Results showed that greater risk of dyslexia was related to slower rapid automatized naming, lower scores on morphological awareness, Chinese character recognition and English letter naming, and gender (boys had…

Original post by Dyslexia

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This study sought to examine factors that are predictive of future developmental dyslexia among a group of 5‐year‐old Chinese children at risk for dyslexia, including 62 children with a sibling who had been previously diagnosed with dyslexia and 52 children who manifested clinical at‐risk factors in aspects of language according to testing by paediatricians. The age‐5 performances on various literacy and cognitive tasks, gender and group status (familial risk or language delayed) were used to predict developmental dyslexia 2 years later using logistic regression analysis. Results showed that greater risk of dyslexia was related to slower rapid automatized naming, lower scores on morphological awareness, Chinese character recognition and English letter naming, and gender (boys had…

Original post by Dyslexia

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ConclusionsSelf‐report scales of reading and of attention difficulties are useful for identifying adults with reading and attention difficulties which may confer risks on their children of related problems. It is important for research following children at family risk of dyslexia to be aware of these effects. Copyright © 2012 John Wiley & Sons, Ltd. (Source: Dyslexia)

Original post by Dyslexia

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ConclusionsSelf‐report scales of reading and of attention difficulties are useful for identifying adults with reading and attention difficulties which may confer risks on their children of related problems. It is important for research following children at family risk of dyslexia to be aware of these effects. Copyright © 2012 John Wiley & Sons, Ltd. (Source: Dyslexia)

Original post by Dyslexia

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This study used Near-Infrared
Spectroscopy (NIRS) imaging to measure the regional cerebral blood volume (BV) and the changes of cerebral activation in the
left prefrontal cortex of 12 Chinese dyslexic children and their 12 age-matched normal controls during the Paced Visual Serial
Addition Test (PVSAT). Results showed that the scores of PVSAT of dyslexic children were significantly lower than those of
the normal children (t=3.33, P<0.01). The activations of the left prefrontal cortex in the normal group were significantly greater than those of dyslexic
children (all P<0.01). Our results indicated that Chinese dyslexia had a general deficiency in working memory and this may be caused by the
abnormal metabolic activity of brain blood volume in the left prefrontal cortex and the d…

Original post by Journal of Huazhong University of Science and Technology — Medical Sciences –

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