The human brain may be just three pounds of jelly. But it turns out that jelly is very organized. New scanning techniques show that the brain's communications pathways are laid out in a highly ordered three-dimensional grid that look a bit like a map of Manhattan.
The rapid rise in numbers has prompted calls to declare the developmental disorder an epidemic. But researchers say most if not all of the increase could be due to better recognition of the disorder by parents, doctors and teachers.
When you give to WAMU, your tax-deductible membership gift helps make possible award-winning programs such as Morning Edition, All Things Considered, The Diane Rehm Show, The Kojo Nnamdi Show, and other favorites.