interesting info on Dyslexia... etc. Learning difficulties such as Dyslexia (difficulties with reading), Dysgraphia (difficulties with writing) and Dyscalculia (difficulties with mathematics) are often associated with lack of brain access and lack of brain and sensory integration. This is symbolised by the two red parallel lines in the picture. Many children with Dyslexia make reversals: “b” for “d”, “on” for “no”.