Certain brain regions of people with the most common form of dyslexia show a decrease in function when such individuals are reading, according to a new study (Proc Natl Acad Sci USA. 1998;95:2636-2641).
A National Institute of Child Health and Human Development–funded research team from Yale University School of Medicine, New Haven, Conn, used functional magnetic resonance imaging (fMRI) technology to produce computer-generated images of the brain while subjects engaged in reading-related tasks. The images revealed a "cerebral signature" for the disorder.
Stephenson J. Mapping the Dyslexic Brain. JAMA. 1998;279(15):1153. doi:10.1001/jama.279.15.1253-JHA80002-3-1