A series of 27 individual three-dimensional, visual-motor tutoring sessions were given to 8 trainable mentally retarded public school children. (BRT)

This study used a set of Piagetian tasks to examine the sensorimotor skills of 40 profoundly retarded institutionalized children ranging in age from 8 to 14 years. (JMB)

Investigated preschoolers' understanding of two distance principles: the direct-indirect and the same-plus principle. Children did better on tasks relevant to the principles than on principle-irrelevant tasks. Concluded that even young children conceive of distance as fixed intervals. (SKC)

Superimposes findings of research in learning disabilities on Piagetian stages of cognitive development. Results suggest that during sensorimotor stage, diagnosis of learning disabilities is difficult. Findings suggest delay exists in cognitive development of learning-disabled children during elementary school years, which corresponds to…

Provides evidence indicating a strong connection between a high level of ambient household noise and intellectual deficits at stages of infant development. Observers rated noise level from all household sources (stereos, appliances, etc.). Delays were found in sensorimotor development with high levels of noise. (Author/JN)

A pre- to post-test design was used to evaluate the effects of rule-based instruction on rule observance, copying performance, and discrimination skill. Three ways of imparting rules (demonstration, verbal description, and combined demonstration-verbal description) were examined, and their usefulness was compared to that of copying without…

A cross-sectional study of language comprehension in relation to cognitive functioning in 48 10-to 21-month-old children, four at each month of age, revealed significant correlations between comprehension and five sensorimotor subscales. (Author/PHR)

The developmental pattern of concurrent synaptogenesis in rhesus monkeys is consistent with a straightforward model of relations between brain and cognitive development. Concurrent synaptogenesis is hypothesized to lay the primary cortical foundation for a series of developmental levels in middle infancy that have been empirically documented in…

Article shows how intelligence, readiness and achievement tests can be put to work in the classroom-not only as diagnostic tools but as aids in prescribing cures for learning problems. (Author)

The fact that the autistic children were so impaired in language even with fairly good sensorimotor skills suggests that these skills, particularly object permanence, play a minor role in their language acquisition. (Author)

Young children drew two opaque objects placed one behind the other. Over two-thirds of the children drew the objects separately in horizontal or vertical relationships. When drawing an object in a glass beaker, half of the children depicted the object vertically or horizontally separate from the beaker. (Author/DB)

Caregiver-infant transactions with 51 premature infants were studied in naturalistic observations in the home when the infants were aged 1, 3, and 8 months. Gesell developmental schedules and a sensorimotor scale were administered at 9 months. (Author/JH)

Argues that the capacity for consciousness of self and others arises from developing representational and perceptual activities, especially during play. Examines young children's development of symbolic play, from sensorimotor exploration to representational play through five stages involving gestures of recognition, self-pretend and pretend play,…

Examined infants' ability to retrieve an object from atop a slightly larger object. Found that even 5-month-olds could retrieve objects close in size and fully contiguous with their bases when demands on reaching skill were reduced. Proposed that when they fail this task, it is because they lack the skill to reach the top object without…

The relationship between sensorimotor performance and communicative ability in 18 autistic children (40 to 108 months old) was studied. The children were administered the Means-End and Operational Causality scales from the Ordinal Scales of Psychological Development. In addition, the Ss were assessed on four measures of verbal and nonverbal…