The effects of grade level, achievement level, and sex were studied in the examination of determinants of visual-motor coordination and visual-perceptual reasoning in elementary school children. (KW)

Ratings of pattern goodness and of pattern preference were made by 96 subjects for each of 50 stimulus patterns of known pattern uncertainty. Equal numbers of male and female subjects were used in each of four age groups (9-10), (13-14), (5817-18), (20-21). Pattern preference was similar for all age groups, with the least uncertain patterns…

Durations of children's alpha bursts and alpha blocking were measured by EEG with eyes closed or open in the dark and with feedback visual stimulation. Alpha durations decreased across conditions. Older children had longer no-alpha durations and showed greater responsiveness to conditions. The alpha-blocking response changes during childhood.…

This research reexamined the hypothesis that recognition is a developmentally stable component of the memory system. Recognition performance was compared across age groups. Particular attention was paid to the role of response biases and perceptual skills in developmental increases in recognition performance. (Author/DB)

Examined adult age differences in the effects of perceptual grouping on attentional performance. All three age groups were slowed by the presence of similar irrelevant information, but the elderly were slowed more than were the young adults. (Author)

This study explored the effect of grade level and sex on affective ratings of color and black-and-white pictures by having 148 students from grades 4, 7, and 12 rate color and black-and-white slides on nine semantic differential scales. (JEG)

Two experiments investigated the process by which children encode briefly presented spatial positions. First, third, and fifth graders were asked to judge whether a test dot occupied the same position on a card as any one of a number of dots which had been presented tachistoscopically. (JMB)

Older individuals have been reported to use imagery mediation less in remembering verbal material. To determine whether this is due to decrease in the speed with which verbal stimuli are recoded into pictorial representations, the reaction time of 12 old (63-78) and 12 young (17-25) subjects for matching verbal descriptions to geometric shapes was…

Children and adults were tested on their beliefs about whether visual processes involved intromissions (visual input) or extramissions (visual output) across a variety of situations. Results were inconsistent with the idea that simple experiences increase or reinforce a coherent theory of vision and have implications for understanding the nature…

The developmental change from global toward dimensional classifications, usually observed in vision, was investigated in haptics with stimuli varying according to their size and roughness. Results indicated that, although more overall similarity classifications were observed in children than in adults, this kind of classification was never…

To assess changes in processing speed in the second and third years of life, 2 sequential visual events were shown to 22-, 27-, and 32-month-old children, 12 at each age. Response clusters indicated that speed of processing increased with age and that a proactive inhibition declined with age. (SLD)

Tested the recognition memory of 4-, 6-, 9-, and 12-month-old infants using visual paired comparison tasks. Found that at even the youngest age that reaching was tested (6 months), infants showed evidence of recognition memory on the reaching task at delays at least as long as those at which they demonstrated recognition memory on the looking…

Children were asked to draw sticks and discs that were foreshortened and not foreshortened. Seven- and 12-year-old children used a partial change of shape in drawing foreshortened sticks and a full change of shape in drawing foreshortened discs. (BC)