Studies were designed to test the prediction that spatial search strategies in infants may be influenced by locomotor experience. The pattern of findings suggests that infants with efficient modes of locomotion are more likely than others to profit from the experiences generated by locomotion. (RJC)

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)

Examined the role of perceptual-motor development in a typical Stage IV task. The performance of ten infants was compared on a Stage IV object permanence task when a cloth cover was used and when a small card cover was used. (JMB)

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)

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)