Different Causes of Dyslexia

Dyslexic Students Writing Problems Corrected, New Research Based Program.

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There are different types of dyslexia and the causes of dyslexia are varied too. All of these result in impairing a child’s ability to read and spell. The main types of dyslexia are primary dyslexia, trauma dyslexia and developmental dyslexia.

Trauma dyslexia

Trauma dyslexia is the result of some type of injury or trauma in the area of the brain responsible for reading and writing. However, this has become rare in the present population of school age children.

Primary dyslexia

Among the causes of dyslexia, primary dyslexia is the result of a dysfunction of the cerebral cortex, or left side of the brain, which does not change as the person grows older. People afflicted with this type of dyslexia find it difficult to read above the fourth grade level and as adults, they may have to struggle with spelling, reading and writing. Primary dyslexia is thought to be hereditary in nature and occurs in boys more often than in girls.

Primary dyslexia and trauma dyslexia are different; primary dyslexia is the result of brain dysfunction while trauma dyslexia is caused by some kind of brain trauma.

Developmental dyslexia

Hormonal development in early fetal development is the cause of developmental dyslexia. This type of dyslexia becomes better as the child grows older, and occurs more in boys.

Genetic and neurobiological causes

There can be genetic and neurobiological factors among the causes of dyslexia, and it is thought that dyslexia can be inherited through the genes. So if a person has dyslexia, there is the strong possibility that his parents, grandparents or some other close family member had dyslexia too.

Some researchers think that dyslexia may be caused by incorrect neuronal migration. Some of the nerve cells of the brain may grow away from the actual place, and the brain does not develop to the full because of this.

Hearing problems

According to other research, hearing problem in early childhood may be one of the causes of dyslexia. Because of the hearing problem, the child cannot hear the sounds of letters properly and so the child’s brain fails to connect the letters with their sound. The failure to recognize sounds in early childhood results in a life-long struggle.

Crossed wires

It has been suggested that dyslexic children use the right side of the brain for functions related to language instead of the left side as in normal children. The right side of the brain is not usually meant for language related functions, so it is possible that the wires became crossed somewhere. So a child who uses his brain’s right side has to work twice as hard to understand language. This may explain why these children become tired and fatigued while listening to instructions, oral recitations or while reading.

Many people believe that a combination of all the causes of dyslexia is the most likely explanation of the affliction hampering the lives of so many children and adults.

Irrespective of the causes of dyslexia, an early diagnosis can help the patient develop coping strategies so that he/she can learn to make use of their individual strengths to achieve success.


What is Dyslexia