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)

Evaluated in three experiments a dynamic systems theory account of perseverative errors on "A-not-B" task. Found that 9-month-olds perseverated when reaching for identical targets, but made nonperseverative responses when reaching in the presence of a highly distinctive B target. Reach direction was jointly determined by target's…

Low birth weight preterm multiple birth infants do lag behind initially in mental and motor development, but they are equal in development with normal peers by the age of two. It was inferred that the multiple caretaking situation did not interfere with the infants' specific attachment to their mothers. (Author/RH)

The literature on the effects of congenital blindness on infants' development of motor functions and concepts of object permanence is reviewed. The article questions the idea that infants must first develop an object concept before sound clues alone will elicit reaching. Possible interventions to redress the effects of congenital blindness on…

A resource and activity guide for the developmentally disabled that focuses on methods to teach students skills essential to learning is presented. It is noted that once students begin to acquire these critical skills, they can become active participants in group learning activities, rather than waiting for their turn in individual sessions. They…