Accuracy in reporting horizontally arranged letter sequences was measured for second-grade children and for adults using a tachistoscopic single report procedure. Results indicated age differences in both the amount of information encoded out of visual sensory store and in the magnitude of left/right visual field differences. (Author/MP)

Three experiments on tachistoscopic perception of visual stimuli demonstrate that the visual system is sensitive to global topological properties. The results indicate that extraction of global topological properties is a basic factor in perceptual organization. (Author)

In three studies, 12-month-old infants were familiarized either tactually or visually with objects and were then tested for visual recognition memory using either (1) the familiar and a novel object, (2) colored pictures of the objects, or (3) outline drawings of the objects. (Author/MP)

Provides a demonstration of the existence of the McCollough effect in children ages six to nine and tests for any obvious differences in interocular transfer of the effect. (MP)

The ability of preverbal infants to form and use ill-defined categories, to respond differentially to contrasting categories, and to use specific dimensions in learning these categories is examined in 20 infants 10 months of age. Results show that infants are not only capable of learning two ill-defined categories, but that they can do so with…

Results indicated that, for all but one of eight autistic children, visual discriminations were acquired significantly faster, with fewer errors, when the S+ stimulus was faded first. These findings are related to the literature on the effects of stimulus novelty on selection and learning. (Author/RH)

Apparently, six-month-old infants can encode a location relative to a landmark, but in many situations their visual search behavior is dominated by a learned egocentric code. (RH)

Subjects watched animated films depicting the simultaneous movements of two triangles toward a goal. One triangle was pushed by an external object while the other triangle was not. Initially, only college students understood the discounting principle. Kindergarten children, second graders, and fourth graders did not. Revision of the film produced…

The ability of 18-, 24-, and 30-week-old infants to learn conceptual categories regarding adult female faces was examined using a habituation paradigm. (JMB)

Examined acuity thresholds for 1- and 2-month-old infants by presenting square wave gratings in a preference paradigm at four viewing distances. (Author/JMB)

Image size, viewing angle, and contrast affect performance of a visual discrimination task. Further, the three factors interaction in their effect on performance. (Author)

Assessed 14-week-olds' attention to green or red target objects moving in a field of distracting objects that varied in color. Found that infants' detection of green moving targets was masked in the presence of mixed red and green objects. Masking was not observed for red targets or for green targets in a field of green objects. (BC)

Extends the discussion of mimetic documents from labeled pictures and picture lists to labeled diagrams and diagram lists. Highlights how different mimetic documents provide qualitatively different levels of understanding. (RS)