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Causes of Dyslexia – What Do We Know About It?
Causes of Dyslexia – What Do We Know About It?

Causes of Dyslexia – What Do We Know About It?

As many as 1 person in every 10 has some form of dyslexia. Dyslexia is a condition marked by difficulties of processing visual data. It results in problems with reading and with processing certain types of visual information. The causes of dyslexia have been under intense study during the last 25 years. So what do we know about it? What causes dyslexia? Can it be cured? What can be done about it? adult classifieds

Researchers now believe that, at base, dyslexia is a neuronal migration disorder that affects the development of the human brain. Neurons, the nerve cells that make up the brain’s neural network, are developed out of stem cells some distance from where they need to ultimately end up.

This distance can be many thousands of times the diameter of these cells. Proper neural development requires that these cells migrate, move over from where they are formed, to where they are optimally required to be. In the brains of people with dyslexia, some of these neural cells have not migrated to their proper place, judging by where they are in the brains of non-dyslexics. Why did this happen? Apparently the causes can be many and varied.

The kind of neuronal migration problem that apparently causes dyslexia can come from some sort of shock or disruption, or the breakdown and failure of certain signals from the genetic code that do not get transmitted or interpreted properly.

These disruptions do not all share the same cause. They can be caused by infections, mechanical injury to the brain, toxic exposure, intrauterine strokes, even by genetic factors. However, in all cases, they reflect an upset to the developing brain during gestation, some time between 16 and 24 weeks. Thus whether or not a given individual will be dyslexic appears to have already been determined well before they are born.

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