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Maki Koyama dphil student I am interested in sensory and cognitive processing underlying reading mechanisms in Japanese


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Maki Koyama
DPhil student
I am interested in sensory and cognitive processing underlying reading mechanisms in Japanese. The Japanese writing system uses both phonetic “Kana” and logographic “Kanji” script, each of which is characterized as highly regular and irregular (or arbitrary) orthography, respectively. Therefore, studies on Japanese will serve to elucidate universal processing necessary for reading development across scripts. I will also start fMRI studies to determine the function(s) of “the Visual Word Form Area” (BA37) in reading by using the two Japanese scripts that are orthographically different but share phonological representations.
I believe that extensive investigation on the normal development of reading in Japanese is an essential step toward the understanding of Japanese dyslexia, which manifests itself differently from dyslexia in English.
Catherine Stoodley
Brief summary of research projects underway:

1. Measuring brain responses to auditory tones and wobbles using a cap of sensors that pick up the electrical activity in the brain. We are doing this to see whether the responses of dyslexic brains to very simple frequency modulations differ from those of control readers. This evidence will help us to establish at what level of the auditory system dyslexics may have difficulties. Difficulties in auditory processing may lead to problems associating sounds with letters, which is crucial to reading acquisition.


2. Investigating a new measure of 'magnocellular' function in children: the jitter

illusion task. We are in the process of developing what we hope is a more sensitive measure of magnocellular function, to better clarify any problems in the visual system of people with dyslexia. In adults, this task successfully discriminated dyslexic from non-dyslexic readers, and there was a strong relationship between performance on the jitter illusion task and reading skills. We are now going to start studying how children perform on this measure, and if it is as useful in identifying children with reading difficulties.


3. A study of developmental disorders associated with cerebellar damage in

childhood (this is peripherally associated with dyslexia, though!).


Also I am writing up the results of some of my thesis work, which hopefully will be

published this year.


Niki Ray
We're continuing to investigate the effects of coloured filters on reading ability. We're also looking at ways to measure sensitivity to various visual tasks in controls and dyslexics.


Janet Walter
CASE/CONTROL GENETICS STUDY
The aim of this study is to collect up to 500 cases and 500 matched controls over the next 3 years.
Cases will be recruited from the Reading and Oxford clinics, local schools and from the Aston clinic according to the following ascertainment criteria:

Age 8 18


Discrepancy of > 1.5 sd (ie 22.5 standard score points) between average of BAS2 matrices and similarities compared with BAS2 reading.

BAS2 Spelling will also be measured but not used as criterion for selection.

PLUS

Reading must be no higher than 100 (ie @ chronological age)


Other tests: Castles and Coltheart (CC) non word and irregular word

Computerised orthographic choice test

BAS2 Rod (forwards and backwards)

Pegboard


Visual motion (to be discontinued)

FM sensitivity (to be discontinued)

Non word repetition

DNA sample

ADHD long (Connors)

ADHD short

DSQ ( Checklist of visual and other symptoms)

Health symptoms checklist



Birth History


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