I was moved to start a thread on dyslexia rather than hijack the thread on which we began this discussion. Anyone who has it, or is interested in it, I would love to hear your experiences. I'm starting this thread with a quote from the wikipedia page, as that is sometimes a good launching place. I'm hoping that through this discussion, more will post links to information and studies about it. Dyslexia is most commonly characterized by difficulties with decoding written text or with achieving accuracy and fluency in reading, and by poor spelling. Dyslexic individuals may also reverse or transpose letters when writing or confuse letters such as b, d, p, q, especially in childhood. However, dyslexia is not a visual problem that involves reading letters or words backwards or upside down, nor are such reversals a defining characteristic of dyslexia. Many individuals with dyslexic symptoms involving reading, writing, and spelling, also have common shared symptoms such as poor short-term memory skills, poor personal organizational skills, problems processing spoken language, left-right confusion, difficulties with numeracy or arithmetic, and issues with balance and co-ordination. These symptoms may coexist with or overlap with characteristics of Auditory Processing Disorder, Visual Processing disorders, Attention-Deficit/Hyperactivity Disorder, dyspraxia, dyscalculia, and/or dysgraphia, as well as with intellectual giftedness, artistic talent, and/or a visual-spatial learning style. The particular pattern of symptoms and traits varies with each individual; accordingly, accurate diagnosis may be difficult and subject to conflicting viewpoints. Evidence that dyslexia is a neurologicalsyndrome is substantial. Research also suggests an association with biochemical and genetic markers. However, experts disagree over the precise definition ad criteria for diagnosis, and some advocate that the term dyslexia be dropped altogether and replaced with the term Reading Disorder or Reading Disability (RD). Because difficulty in "breaking the code" of sound-letter association (reading acquisition) can be seen as being on a continuum, some believe the term dyslexia should be reserved for the two to five percent most severely affected with RD. Dyslexia - Wikipedia, the free encyclopedia I am of the opinion that dropping the term "dyslexia" in preference of Reading Disorder would be tragic indeed. The problem seems to be in the wide variety of symptoms displayed, but it appears clearly enough to be some sort of neurological disorder. It is also apparent that dyslexics have a far higher than average incidence of alcoholism, substance abuse, and ADD. I'll post more sources later on, but personally I feel safe in asserting that a low seretonin level is in some part responsible.