• April 25, 2024

The dyslexia It is considered a learning disorder of literacy due to an alteration of neurodevelopment during childhood, persistent character that goes far beyond being problems to read or write that affects about 15% of the world population, according to the World Health Organization.

The dyslexia It manifests in a characteristic way difficulties to recite the alphabet, denominate letters, make simple rhymes and to analyze or classify the sounds.

In addition, reading is characterized by omissions, substitutions, distortions, inversions or addictions, slowness, hesitation, problems of visual monitoring and deficit in comprehension, which mostly have a neurological origin.

Scientific data of its origin

1. A defect in neuronal migration could be the basis of the dyslexia , explain researchers from Laboratory of Cognitive Sciences and Psycholinguistics of Paris , in addition to various pathological processes involved in the phonological and sensory-motor deficit.

2. People with dyslexia They have less coordination between thirteen regions of the brain that have to do with the basic sounds and the area of ​​Broca, one of the main responsible for the processing of the language .

3. In the dyslexia defective access of sounds (phonemes) to the area of ​​the brain that processes the sound, so that in reality there is no mental misrepresentation of them, but there is less coordination between the hemispheres and a slower response.

4. The dyslexia and the Attention deficit disorder, with or without Hyperactivity (ADHD), are intimately related. Between both entities there is what is called comorbidity; that is, a greater frequency of appearance than would be expected. It is estimated that up to 50% of children with dyslexia can also present ADHD.

5. Researchers of the Yale University have identified that a gene of chromosome 6, called DCDC2, which is linked as one of the likely causes of dyslexia , which is studied to try to identify and isolate it prior to its development.

Although the most used therapy against the dyslexia is the relearning of new types and methods of reading and writing, as well as of psychomotor coordination, scientists from institutions such as University of California at San Francisco , develop new programs and software that will have a much greater impact at the brain level, in order to try to modify their processes.

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