Manual Dexterity in Phenylketonuric Children

Abstract

3 groups of children (12 phenylketonuric Ss, 12 nonphenylketonuric matched controls, and a normative group of 72 elementary school children) were given a series of 5 manual dexterity tasks. Taken as a group the performance of the phenylketonuric Ss did not differ from their matched controls. When the phenylketonuric group was divided into two subgroups (on or off diet), Ss on diet did not differ significantly from their controls, but Ss off diet performed significantly more poorly than their controls.