Archive for the 'Dyslexia' Category
Tract-based spatial statistics of diffusion tensor imaging in adults with dyslexia.
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Tract-Based Spatial Statistics of Diffusion Tensor Imaging in Adults with Dyslexia.
AJNR Am J Neuroradiol. 2008 May 8;
Authors: Richards T, Stevenson J, Crouch J, Johnson LC, Maravilla K, Stock P, Abbott R, Berninger V
BACKGROUND AND PURPOSE: Diffusion tensor imaging is a tool that can be used to study white matter microstructure in dyslexia. We tested the hypothesis that dyslexics have a white matter structural change (as measured by directional diffusion of water, which can be affected by disruption in white matter tracts) between brain regions that previous functional connectivity studies showed were associated with phonologic processing. MATERIALS AND METHODS: Diffusion tensor imaging (D…
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Studying medicine with dyslexia (Source: studentBMJ: Contents RSS Feed) MedWorm Sponsored Message: Find out how you can get your message across here by sponsoring this MedWorm news feed.Original post by studentBMJ: Contents RSS Feed
No commentsNo differential attentional blink in dyslexia after controlling for baseline sensitivity.
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No differential attentional blink in dyslexia after controlling for baseline sensitivity.
Vision Res. 2008 May 6;
Authors: Badcock NA, Hogben JH, Fletcher JF
Previous research has associated a prolonged attentional blink (AB) with adult dyslexia [Hari, R., Valta, M., & Uutela, K. (1999). Prolonged attentional dwell time in dyslexic adults. Neuroscience Letters, 271, 202-204]. The AB represents a limitation in temporal information processing, estimated as the time interval between two targets necessary for accurate recall (e.g., [Raymond, J. E., Shapiro, K. L., & Arnell, K. M. (1992). Temporary suppression of visual processing in an RSVP task: An attentional blink? Journal of Experime…
Asymmetry of voice onset time-processing in adult developmental dyslexics.
Asymmetry of voice onset time-processing in adult developmental dyslexics.
Clin Neurophysiol. 2008 May 2;
Authors: Giraud K, Trébuchon-Dafonseca A, Démonet JF, Habib M, Liégeois-Chauvel C
OBJECTIVE: The human auditory cortex codes speech temporally according to sequential acoustico-phonetic cues like the voice onset time (VOT). This coding is predominantly left-lateralized in normal readers. We examined VOT-processing asymmetries in adults with a history of developmental dyslexia (DD-history+). METHODS: Auditory-evoked potentials (AEPs) to voiced (/ba/) and voiceless (/pa/) speech stimuli were recorded from 10 DD-history+ adults and 8 controls. Source modelling of the “release component” (RC:…
The incidence of dyslexia among young offenders in kuwait
This paper investigates the incidence of dyslexia among young offenders in Kuwait. A total of 91 children/young adults from 8 juvenile delinquent welfare centres across Kuwait were interviewed and tested. A measure of non-verbal reasoning ability was used to exclude those with low general ability. The remaining 53 participants were tested on their ability to identify alliteration and rhyme, retain and manipulate sequences of digit and letter names, decode novel letter strings and identify words within letter chains. Participants’ reading accuracy, rate of reading, reading comprehension and ability to spell correctly dictated text were also assessed. These measures were used to determine those with indicators of dyslexia. The results indicat…
No commentsDyslexia: a review of two theories
Clinical and Experimental Optometry, Volume 0, Issue 0, Page ???, OnlineEarly Articles.
Optometrists will frequently see patients, who may have a diagnosis or a suspected diagnosis of dyslexia (specific reading disorder) and will need to manage and counsel such patients. There are many propounded theories on the cause(s) of dyslexia. … (Source: Clinical and Experimental Optometry) Original post by Clinical and Experimental Optometry
No commentsCognitive subtypes of dyslexia.
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Cognitive subtypes of dyslexia.
Acta Neurobiol Exp (Wars). 2008;68(1):73-89
Authors: Heim S, Tschierse J, Amunts K, Wilms M, Vossel S, Willmes K, Grabowska A, Huber W
Different theories conceptualise dyslexia as either a phonological, attentional, auditory, magnocellular, or automatisation deficit. Such heterogeneity suggests the existence of yet unrecognised subtypes of dyslexics suffering from distinguishable deficits. The purpose of the study was to identify cognitive subtypes of dyslexia. Out of 642 children screened for reading ability 49 dyslexics and 48 controls were tested for phonological awareness, auditory discrimination, motion detection, visual attention, and rhythm imitation. A…
Neuromotor, cognitive, language and behavioural outcome in children born following ivf or icsi-a systematic review
BACKGROUND
The effect of in vitro fertilization (IVF) or intracytoplasmic sperm injection (ICSI) on the developing human brain is unclear. The objective of this study is to evaluate neurodevelopmental (ND) outcome of children born following these techniques.
METHODS
This systematic review includes studies which compare a group of children born following IVF/ICSI to children born after natural conception by assessing outcome in terms of neuromotor development, cognition, speech/language and behaviour. Specific attention is paid to the studies’ methodological quality based on study design, attrition, blinding of the assessor, validity of ND tests used, confounders included and group size or power analysis.
RESULTS
Twenty-three out of …
Study: dyslexia differs by child’s language
Dyslexia affects different parts of children’s brains depending on whether they are raised reading English or Chinese. That finding, … (Source: USATODAY.com Health) Original post by USATODAY.com Health
No commentsDyslexia differs by language: study
Dyslexia affects different parts of children’s brains depending on whether they are raised reading English or Chinese. (Source: CTV Health) Original post by CTV Health
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