Different types of dyslexia
There is no consensus as to the question whether dyslexia and other conditions that often occur in the same person are neurologically related. It is therefore hard to say dyslexia has subdivisions.
Not every dyslexic has trouble with mathematics. If they do, it is called acalculia or dyscalculia. Disorientation plays a major role in dyscalculia, causing numbers to be reordered.
Being able to hear someone else in a noisy room can be very difficult to a dyslexic, because it is hard for them to keep focused on one person. They hear a mix of everything that is being said. Although they try to listen to a single person, they receive the information of others as well. Processing the speech sounds is more difficult to them.
Three types of dyslexia or related disorders
Researchers often disagree about the relations between dyslexia and other learning disorders that are alike. There are three clearly distinguishable disorders:- Dyslexia: trouble with reading and writing
- Dyspraxia: trouble with talking and listening
- Dyscalculia: trouble with calculations
The P-type dyslexic is a slow reader which makes few mistakes. In a few months of practise they will read more fluently. They will convert to the L-type dyslexics who read faster and make more mistakes due to guessing words rather than reading them carefully.
Linguistic disorders and dyslexia
Developmental linguistic disorders often occur in children that become dyslexic in a later stage of their lives, and 40% to 50% of the children with linguistic problems develop reading problems as well.Comparing children that have severe linguistic or speech problems to children with dyslexia shows that both groups experience problems with the same subjects:
- Phonological consciousness (linking or separating the sounds of words)
- Repeating words and sentences (difficulties with distinguishing speech sounds)
- Speech perception (processing speech)
- Determining whether a sentence is grammatically correct or not