Morphometric analysis of magnetic resonance imaging scans revealed that, compared to nondisabled controls, the seven children with attention deficit hyperactivity disorder had a smaller corpus callosum. Results suggest that subtle differences may exist in the brains of these children and that deviations in normal corticogenesis may underlie the…

The isokinetic strength of the knee extensor muscles of both limbs was evaluated in 25 children and adolescents with Down's syndrome. The Down's syndrome subjects were significantly weaker than control groups with average intelligence and with non-Down's syndrome mental retardation. Results suggested a dysfunction of the neuromuscular system,…

This document completes a series of four monographs that comprise a framework for describing children's development through the school years. Each monograph incorporates insights gained through research and practice. As a resource designed primarily for teachers, administrators, and curriculum designers, the document looks at the whole child as a…