Motormental retardation in children is generally related to significant central nervous system damage or abnormality. It refers both to lack of mental development and motor development. There can be various degrees of mental retardation, and failure to meet various normal developmental milestones.
David Zieve, MD, MHA, Medical Director, A.D.A.M. Health Solutions, Ebix, Inc. Neil K. Kaneshiro, MD, MHA, Clinical Assistant Professor of Pediatrics, University of Washington School of Medicine.