Five-, five-and-a-half-, and seven-month-old infants were tested for sensitivity to relative size as distance information. Infants viewed two equidistant, different-sized objects presented side by side and reaching was used as dependent measure. Findings revealing five-and-a-half- and seven- but not five-month-olds were sensitive to relative size…

For the age range tested there is a lag between the perception and production of certain facial expressions. (Authors)

Examines the development of young children's analysis of spatial patterns--specifically, hierarchical letter and geometric forms. Suggests that although children as young as four years of age demonstrated substantial analytic competence, their ability to integrate the parts of the spatial array to form a coherent whole was weaker and more easily…

Visual fixations were recorded in newborn, 4-, and 8-week-old human infants as they scanned displays that varied in contour length, size, number, and a new metric, CVAL (based on Contour Variability, Amount and Location). One of the findings was that both contour length and CVAL separately accounted for approximatel1 95 of looking-duration…

Performance of 162 children, ages five to seven, on concept formation and perception tests indicated that enforced delay in responding minimally affected all reflective subjects and impulsive boys; impulsive girls improved. (Available in microfiche from: Carfax Publishing Company, Haddon House, Dorchester-on-Thames, Oxford 0X9 8JZ, England.) (CP)