Everything You Need To Know About The Different Types Of Dyslexia
A lot of people are getting confused with the meaning of the dyslexia.
What exactly is dyslexia?
Dyslexia actually has two meanings.
The first meaning of dyslexia is the literal meaning since it is based on the etymology of the word itself, “Dys” means problematic or wrong then “lexia” means pertaining to letters or words. Literally, the word dyslexia refers to difficulty with words. People that have problems with words have dyslexia.
The second meaning is more wider when it comes to its use and its application. This is usually used by dyslexic adults and parents of dyslexics. In the application aspect, dyslexia refers to a number of symptom such as problems with spelling, writing and reading, poor memory, does not have physical coordination and has difficulty in hearing.
The exact meaning of dyslexia actually depends on how the word is being used.
In the year 1973, Newcombe and Marshall subdivided the word dyslexia and they describe each kind dyslexia. The first ideas were about the double deficit dyslexia, surface dyslexia and phonological dyslexia.
Here are the types of dyslexia:
A. Surface dyslexia
The symptom of surface dyslexia is when the person is having mistakes and is inconsistent with the English pronunciation. For example, the word bowl is pronounced as howl and the word pretty is pronounced as jetty
Phonological dyslexia refers to the failure of adapting the phonics of the English language. People find it hard to read new words if they have phonological dyslexia.
C. Double deficit dyslexia
Double deficit dyslexia is the word that they used to individuals that have phonological dyslexia and surface dyslexia.
D. Visual dyslexia and auditory dyslexia
The visual dyslexia and auditory dyslexia are from the magnocellular theory. The magnocellular theory states, that people with dyslexia are neurologically weak in their magnocellular cells in the thalamus part of brain. This part of the brain is where they process visual and auditory information.
There are studies that shows, that people with dyslexia have difficulties in processing auditory information and visual information.
Children that have poor visual skills but have average hearing skills can be diagnosed as visual dyslexia, and those children that have poor hearing skills but average visual skills are diagnosed with auditory dyslexia.diagnosed with auditory dyslexia.
E. Orthographic dyslexia
Orthography is a group of letters and symbols that will create a language. The english alphabet has 26 letters, while for the Chinese and Japanese language they have thousands of different kinds of symbols. This means that orthographic dyslexia is problems with the identification and manipulation of letters in spelling, writing and reading.
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