Research Provides Evidence For The Existence Of Various Subtypes Of Dyslexia

Certain neurological differences that can support the existence of various subtypes of dyslexia, find researchers from University of Edinburgh.

These differences can be linked to different language difficulties within the dyslexic group.

Dyslexia - Causes, Symptoms, Diagnosis, Treatment
Dyslexia is a reading disability that occurs when the brain does not properly recognize and process certain symbols.

With the help of magnetic resonance imaging (MRI), the researchers compared the brains of people with dyslexia with normal readers.

They found that parts of the right hemisphere of the brains of people with dyslexia differ from those of normal readers.

Lead researcher Cyril Pernet, from the University of Edinburgh, worked with a team of researchers to compare the brains of 38 people with dyslexia to a model 'typical brain' created by combining the scans of 39 normal readers.

Dyslexia Subtypes Demarcated by Neurological Differences
In patients with dyslexia parts of the right hemisphere of the brain have been shown to differ from those of normal readers

In all cases, differences could be seen in either the right cerebellar declive or the right lentiform nucleus. These were associated with varying performance in language tests.

"These results provide evidence for the existence of various subtypes of dyslexia characterized by different brain phenotypes," said Pernet.

Dyslexia in Chinese, English Speakers is Different: Study
Chinese- and English-speaking dyslexics have different neurological deficits, according to a study released Monday which suggests that dyslexia may be different brain disorders in the two cultures.

The study appears in open access journal BMC Neuroscience.

Source-ANI
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