Henry Maykowskyj Nordean is keenly interested, and quite talented at constructing Lego toys. The Nordeans struggled for years to get a diagnosis for their son, Henry, 9, who has attention deficit disorder. Researchers in Portland have developed a potentially better way to diagnose ADHD — pinpointing subtypes that may not appear typical of the disorder. The goal is to develop treatments tailored for each subtype. Photo by Thomas Boyd/The Oregonian















