This paper examines the development of perseverative reaching in the A-not-B task. We describe two recent models that view perseveration as a sign of developmental progress toward stability. In Experiment 1, we test the novel prediction from both models that very young infants should not perseverate in the A-not-B task whereas older infants should. We tracked infants' behavior monthly on the A-...

The process of identification of children with delays or disorders in motor development includes developmental screening, examination, and reexamination. Throughout this process, various types of measures are used, including discriminative and evaluative measures. Discriminative and evaluative measures of motor development and function that are commonly used for preschool-aged children include ...

this study aimed at examining the effect of local games on motor development and aggressive behavior in preschool children. in a semi-experimental study, 40 children (6 years old) were selected randomly from preschools in ahwaz city. pretest was conducted using ulrich gross motor skills test and aggression scale. based on their pretest scores, subjects were divided into two equal groups: local ...

BACKGROUND Motor delays have been reported in retrospective studies of young infants who later develop Autism Spectrum Disorders (ASDs). OBJECTIVE In this study, we prospectively compared the gross motor development of a cohort at risk for ASDs; infant siblings of children with ASDs (AU sibs) to low risk typically developing (LR) infants. METHODS 24 AU sibs and 24 LR infants were observed a...