Types

Dyslexia can be broken down into different subtypes, but there is no official list of dyslexia types because they can be classified in different ways.


However, the following categories are sometimes used:


Phonological dyslexia: The person has difficulty breaking down words into smaller units, making it hard to match sounds with their written form. This is also known as dysphonetic dyslexia or auditory dyslexia.


Surface dyslexia: The person cannot recognize a word by sight, making words hard to remember and learn. This is sometimes called dyseidectic dyslexia or visual dyslexia.


Rapid naming deficit: The person cannot quickly name a letter or number when they see it.


Double deficit dyslexia: The person finds it hard to isolate sounds also to name letters and numbers.


Visual dyslexia: The person has an unusual visual experience when looking at words, although this can overlap with surface dyslexia.


Sometimes people refer to "directional dyslexia," meaning it is difficult to tell left from right. This is a common feature of dyslexia, but it is not a type.


If a person has difficulty with math learning, the correct term for this is dyscalculia. It is not dyslexia.


 

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