American scientists do stuttering

October 5, 2011

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The problem Stuttering I worried scientists for centuries. However, accurate diagnosis and it was not possible: someone saw the cause of dry language, someone in it too big size, etc. All attempts by the doctors of the time does not result in some positive achievements, and the treatment they were strange: from wrapping language in lettuce and ending with a scalpel.

Not so long ago, American scientists discussed genes   and anatomy of the brain   at a meeting. Using positron emission tomography, and MRI is one of the physicians began exploring in detail the human brain stuttering. As a result of his research, he came to an interesting conclusion: the part of the brain stutterer, which is associated with speech Is more active than the average person, the situation was contrary to the parts of the brain responsible for the sound: from stutterers he was less active. Yes, and the stuttering brain also looks different: in the places responsible for the processing of language and pronunciation gray matter has a denser structure. These results showed that the problem of stuttering is much deeper and more complex than it seemed before.

One of the scientists of the US National Institute noted that stuttering can be passed on genetically, if one or both parents stutter, then the probability of stutterer increases significantly.

To identify the genes responsible for stuttering, the researchers studied 45 families from Pakistan. In this country, common marriages between relatives, for example, between first cousins. This often leads to mutations in genes and diseases associated with them. Thus, studying the mutated genes that were in stutterers, the researchers concluded that the gene responsible for such a violation is a speech GNPTAB .

Next, the scientists began to study people who stutter in India can also often reveal the mutations. As a result, it was concluded that there are also genes which may cause mutation, and may not lead to stutter.

All of these genes are involved in encoding enzymes Regulating lysosome - Cellular organelles responsible for waste disposal. Besides stuttering mutations in these cells can cause severe disease with fatal consequences.

Thus, the causes of stuttering should look directly at his own head, and at the genetic level. However, most therapists claim that if a child is not born a stutterer, then this deviation - this is only acquired diseases, which should be to get rid of various psychological methods.