Children's and adolescents' responses to some nonmimetic figures of motion showed that the figures become more effective in indicating direction of motion as age increases; however, at a given age, some are much less effective than others. As indicators of speed, some figures are intrinsically more effective than others. (Author/RM)

Results support the contention that with advancing years brain-damaged children may adapt to and/or recover from the deficit(s) involved in the inability to develop and maintain a readiness to respond. (Author/MB)

Paper is based on a Master's Thesis submitted by the senior author to the Department of Psychology, Brandeis University, 1967. (IR)

An Ames static trapezoidal window was used to test infants' responsiveness to pictorial depth. Sensitivity to the pictorial information for depth that is present in the trapezoidal window appears to develop after the age of 22 weeks. (Author/DB)

The time course of kindergarten children's memory for left-right orientation during the first 2 l/2 seconds after receptor stimulation was investigated by means of a successive matching-to-sample task with tachistoscopically presented abstract figures. (Author/DB)

Event-related potentials (ERPs) of children and adults were measured while subjects observed pictures of facial expressions. Adults had greater ERP responses to happy than to angry faces, whereas children had greater ERP responses to angry than to happy faces. (BC)

Two experiments examined the origins of joint visual attention in 6- to 11-month-olds with a training procedure. Results indicated that joint visual attention does not reliably appear prior to 10 months; from about 8 months, a gaze-following response can be learned; and simple learning is not sufficient as the mechanism through which joint…

Two experiments used object-manipulation tasks to examine whether one- to two-year-olds form superordinate-like categories by attending to object parts. Findings indicated that 14- and 18-month-olds behaved systematically toward categories with different, but not matching, parts. Without part differences, none formed superordinate categories.…

Examined exogenous orienting among infants between 7 and 21 weeks of age in 2 experiments using display with multiple potential attention targets. Found that as early as 7 weeks of age, sensitivity for a small moving stimulus can be significantly influenced by the simultaneous presence of competing attention targets. Found large increases in…

This study compared visual attention in 18 prelingually deaf children (half with cochlear implants and half with hearing aids) and 10 normal hearing children. Unlike previous studies, children in all three groups performed similarly on a continuous-performance visual attention task and on a letter cancellation task. Only age and nonverbal…

Investigated whether individual and developmental differences in look duration were correlated with latency to disengage fixation from a visual stimulus for 3- and 4-month olds. Found that look duration was correlated with disengagement latency. Three-month olds showed slower latencies than 4-month olds. Long-looking infants showed greater…

This paper studied whether abnormal P3 amplitudes in PDD are a corollary of abnormalities in ERP components related to selective attention in visual and auditory tasks. Furthermore, this study sought to clarify possible age differences in such abnormalities. Children with PDD showed smaller P3 amplitudes than controls, but no abnormalities in…

This paper presents three experiments examining competence in the domain of proportional reasoning in several age groups (adult, and children in kindergarten, first, third, and fifth grade). In the three experiments, subjects indicated which of two flower boxes had the greater density of flowers. In experiments 1 and 2, the flowers were presented…