What is Dyslexia?
Dyslexia is a man made problem, a social construct, about having cognitive difficutlies using a man made communication system, the visual notation of speech, or having problems decoding and recoding the graphic symbols society chooses to represent the sounds of speech.
Dyslexia is language dependent.
There are two types of dyslexia, Developmental Dyslexia which has a genetic origin, and Alexia, acquired dyslexia, which is acquired via a severe brain injury, substance abuse, stroke, dementia, or a progressive illness.
Developmental Dyslexia has three cognitive subtypes: auditory, visual, and attentional, which menas that an auditory processing disorder, a visual processing disorder, an attnetion disorder, or any combination of the three can cause the dyslexic symptom.