Dyscalculia: News from the web:
New research has been done in the theory that number, space and time might be part of a generalized magnitude system and that deficits in that system could explain Developmental Dyscalculia. It is quite a good read but their main conclusion is:
Deficits in number processing and arithmetic cannot be explained with a general magnitude deficiency. Our results further indicate that multiple neuro-cognitive components might contribute to the explanation of developmental dyscalculia.
Read all about it HERE