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…

Four experiments investigated 4-, 6-, and 9-month-old infants' ability to perceive whether the width relationship between a block and the opening of a box specified passing through or support. Found that six- and nine-month olds looked significantly longer than four-month olds when a block wider than a box opening passed through this opening. (MDM)

Results of a study indicated that, as age increased from seven to 20 years, reaction time decreased, with males having a more rapid reaction time than females. Beginning at age 10 or 11, subjects developed better motor plans and relied less on rapid reaction time to achieve good anticipation time. (FG)

It was found, among other things, that rural Ss performed significantly below their mental ages more frequently than urban Ss; and that between the chronological ages of 10 to 14 years, while urban Ss appeared to perform as expected from mental ages, a significant number of rural Ss performed below expectations. (Author/DLS)

The Bender Gestalt Test and the WRAT reading section were administered to 147 disadvantaged children. The zero-order correlation of -.62 was found to be moderated by the variable of age. For younger subjects, highly significant first- and second-order partial correlations were obtained with age and/or WISC information scores held constant. (Author)

The performance of 132 pre- and primary school children on a Bender-Gestalt copying task was compared with that of a multiple choice version. Significant correlation coefficients were obtained between the copying and recognition scores. The multiple choice version was also as successful as the copying test in predicting reading achievement scores.…

Compared differences in the Bender-Gestalt mean error scores of 1,938 Black, Hispanic, and White children. Performed a two-way between groups' unweighted means ANOVA on the error scores for the seven age groups and for the three ethnic groups. Significant differences were found for both main effects. (Author)

Four experiments examined the spatial orientation of children who walked while wearing a blindfold. Children and adults viewed a target, were guided blindfolded to a new point, and then aimed a pointer at the target. Route complexity, but not number of targets or time delay, affected spatial orientation. Some age differences were observed. (BC)