I thought this was an interesting article.
http://blogs.scientificamerican.com...sorder-hyperlexia-and-einstein-syndrome/ DS9 seems to fit into category 3. He was reading at a third grade level in early kindergarten and he still tests about 3-4 grade levels ahead on reading achievement tests. He tests 98-99th percentile on MAP. Cognitive ability testing also 98th-99th percentile. DD was an early reader as well but in the last several years it has been challenging to get her to read at home so her achievement scores are slipping. She would probably be category 1 (if I had to pick a category) however I think there should be another category, one where children are gifted, the other kids do not catch up, and they don't have autistic traits. There is research stating that most highly gifted kids were early readers. So are they really hyperlexic? Or just gifted?
