Sensorimotor difficulties are common in children with autism spectrum disorder, and it has been suggested that motor planning problems underlie their atypical movements. At early school-age, motor planning development typically involves changes in visuomotor integration, a function known to be affected in autism spectrum disorder. However, there…

"Research Findings:" The present study aims to investigate the relationship between physical fitness and visuomotor integration in young children. A total of 242 three- to six-year-old preschoolers were randomly selected from a preschool in Shenzhen, China and their visuomotor integration and physical fitness were evaluated using the…

Handled artifacts are ubiquitous in human technology, but how young children engage in spatially coordinated behaviors with these artifacts is not well understood. To address this issue, children (N = 30) from 17-36 months were studied with motion tracking technology as they fit the distal segment of a handled artifact into a slot. The handle was…

Purpose: Improvements in motor performance and coordination may be impacted by the interaction of practice and organismic constraints. It has been proposed that these aspects of motor learning are achieved at a different time rate: first, during placement of the events (performance), and second, segmental spatiotemporal relationships…

Studied developmental changes in rhythmic motor skills by observing the hand clapping of 3- through 7-year olds. Found that a variable measuring coordination of children's arms while clapping changed from a nonconstant magnitude in younger clappers to a constant magnitude in older clappers. (BC)

This study investigated whether age, sex, speed, and practice affects the acquisition of coincidence-anticipation (C/A) performance accuracy of children ages seven to twelve. (C/A refers to the ability to make a motor response coincident with the arrival of an object at a designated point.) The subjects used in this study were 84 elementary…

A battery of four tasks which measure the interhemispheric transfer of information was utilized to test the hypothesis that there will be an increase in efficiency of interhemispheric transfer with increasing age. (MP)

Isometric pinch force regulation was investigated in children and adults using a visuo-motor tracking paradigm. Younger children aged 5-7 years performed significantly worse than older children aged 9-11 years and adults in terms of an overall error score as well as a correlation score, which is believed to reflect the ability to predict the…

Evaluated role of visual input during reaching and grasping. Found that both infants and adults completed a reach and grasp to a darkened object but used vision when object remained visible. Infants contacted the object more often when it remained visible, although with longer durations and more movement units. Adults reached faster and more…

Over the past decade, cognitive approaches with children with developmental coordination disorder (DCD) have been investigated. Although studies have focused on intervention outcomes, few have documented the components of the approach that support the enhancement of children's performance. This study used systematic observation of videotaped…

These data appear to support the conception that the speech motor system can act as a mediator of other motor systems when speech'' is experimentally manipulated. (Author)

Two experiments examined developmental changes in accuracy of judgments about physical abilities in primary school children and college students. Subjects were asked to complete four physical tasks with and without benefit of practice. Found that children overestimated their physical abilities, individual differences in overestimation related to…

Compared coupling characteristics of clapping simultaneous with walking or galloping, consistency across trials, and phasing variability among 4-, 6-, 8-, and 10-year-olds. Found that for walk/clap tasks, children adopted adult-like coupling patterns by age 8 and with the same consistency by age 10. Across age, children became less variable in…

An investigation examined the use of "preferred speeds" by young children in their response to a timing task. Three groups of boys, 5, 7, and 9 years old, made a simple horizontal arm movement that would end with contacting a microswitch at the same time a light reached the end of the runway. One stimulus traveled at the individual's…

A four-part taxonomy was used to analyze first-, third-, and fifth-grade children's ability to throw and to anticipate the position of a target. The children's performances were assessed under conditions in which both the thrower and the target were stationary, both were moving, and one was moving and the other stationary. (Authors/PP)