Testing Pollack's hypothesis that decreases in effective contour contrast (resulting from a decrease in receptor sensitivity with age or from a change in actual stimulus contrast) lead to decreases in illusion magnitude. Conclusions are questioned by Sjostrom and Pollack (PS 501 740). (Author/MB)

Auditory and visual recognition were studied in subjects ranging in age from 10 to 60 years. In comparison with perceptual and response factors, memory scanning time is relatively insensitive to age differences, and auditory recognition involves the use of a pre-linguistic memory system insensitive to age differences. (Author/MF)

Children's abilities to judge "who is older" without using size as a cue were studied. Five-year-olds were better able to discriminate age than four-year-olds but were not equal to adults. No significant sex differences were found. (Author/RD)

Experiments on the development of face recognition showed that young children can ignore featural information when it has no discriminative value and attend to the internal attributes of the face and indicated a lack of developmental differences in face recognition styles, as well as a tendency to rely on configurational information more than…

Presents two experiments which investigated whether there is a shift with age in the relative speed and difficulty of same versus different judgments. Subjects included preschoolers, third graders, and college students. (SDH)

Investigates the different levels in the visual system at which laterality effects may be elicited in children and adults in five different experiments. (LLK)

Subjects from kindergarten-age to adult participated in four experiments. In order to view the stimuli, subjects in three experiments activated lights in viewing boxes; in the fourth experiment, stimulus fixations were measured using a corneal reflection technique. Results supported the view that visual observing is controlled by cognitive…

Preschool children were asked to choose the figure most resembling a real man from three figures drawn according to formulas used by children to depict humans. Results suggest development of drawing systems influences children's conceptions about objects or events. (Author/DB)

Children (ages 6 to 16) judged which of two photographs of unfamiliar faces showed the same person as an inspection photograph. Recognition accuracy improved markedly between ages 6 and 10 with little change thereafter. (MS)

This study tested the hypothesis that memory for pictorial material is dependent on initial comprehension of the depicted relationships. A total of 72 second, sixth and ninth graders were compared on ability to remember cartoon pictures which did or did not contain action lines as clues to the interaction between actors. (MS)

Examined the visual scanning patterns of infants ages 6, 10, and 13 weeks who viewed static geometric figures. Measures of fixation dwell-times, saccade lengths, and the choices and sequences of saccadic targets revealed that, although younger infants demonstrated salience-guided scanning behavior, older infants increasingly utilized volitional…

This study examined 4- and 6-month-olds' responses to static or dynamic stimuli using behavioral and heart-rate-defined measures of attention. Infants looked longest to dynamic stimuli with an audio track and least to a static stimulus that was mute. Overall, look duration declined with age to the different stimuli. The amount of time spent in…

Thirty-two Hawaiian children in grades two, four, and seven participated in a study designed to test an ethnographic observation that rural Hawaiian children are highly sensitive to movement and location in their visual environment, and also to test the effect on the children of using Pidgin versus Standard English (S.E.). The children were…