What Causes Increases In Dyslexia?
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Educational standards and methods of instruction continue to improve over time. Sadly, at the same time more and more children are being diagnosed with one particular learning disability: dyslexia. It is disturbing to see that child psychologists are reporting dyslexia in children as early as three to five years of age.
The evolutionary theory that was once used to explain dyslexia no longer appears to hold true. The evolutionary theory explained that dyslexia was the result of the late introduction of learning and instruction in the neurological development of a child. This may create certain learning challenges, but is not the cause of dyslexia, nor its increased occurrence in the population.
What does appear to be true is that the main causes of this learning disability come from how the brain processes information from spoken and written language. This information is neurologically impaired by certain factors in the brain, resulting in dyslexia. Dyslexia is not related to intelligence; even the most brilliant people may be affected by this disorder that originates in the brain.
It is clear that one of the main precursors of the learning disability is heredity. If dyslexia is, indeed, hereditary, then families pass the potential for the dyslexia from generation to generation. This area of dyslexic study has generated a lot of interest, but there is still much research and study to be done to determine and isolate particular genetic factors that contribute to the learning disability.
Interesting developments in the study of dyslexia include the discovery of a network of cells beneath the surface of the brain in people with dyslexia. In the normal neurological development process these cells move from just beneath the surface to along the surface shortly after birth. In dyslexic people the cells do not make the move for some reason. These ectopic cells are found in the front and left of the brain, the very areas known to be important for performing reading and writing.
The causes of dyslexia are still being researched and explored. This, however, does not explain the problem of the growing number of dyslexic children. With increased numbers of dyslexia, more time and effort must be spent developing and executing therapies and structured learning to help dyslexic children succeed. Before the problem of this learning disability can be fixed, research must continue to understand its cause.
Article Source: Articlelogy.com
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