Vigilance performance of twenty fourth-grade retarded readers was compared with that of twenty normal readers matched for age, sex, grade, and intelligence. (Authors)

Results of two experiments minimizing verbal encoding and response demands indicate that when the ceiling effects in no-mask target recognition are removed, the visual information processing rates for children and adults can be considered equivalent. (Author/RH)

This paper examines the mental processes involved in inferring perspective changes resulting from the rotation of a spatial array or from the rotation of the viewer of that array. Under certain conditions, viewer-rotation problems become easy and array-rotation problems become difficult. Apparently, an array is fixed vis-a-vis the spatial context.…

Two experiments examined the development of children's memory for spatial location or color. Results refuted the proposal that in contrast to color, spatial location would not show developmental improvement because it is remembered automatically. Suggests that, for the age range studied, there was developmental change in the efficiency of…

Lists strategies for promoting functional vision use in children with visual and motor impairments, including providing postural stability, presenting visual attention tasks when energy level is the highest, using a slanted work surface, placing target items in varied locations within reach, and determining the most effective visual adaptations.…

Two experiments explored the nature of perceptual development in 5- and 10-year olds and adults. The primary finding was that preassessed salience significantly influenced 5-year olds' ability to discriminate two objects, while salience did not affect 10-year olds' or adults' response times. Results showed that salience effects in perceptual…

Three experiments explored 5- and 7-month-olds' intermodal coordination of proprioceptive information produced by leg movements and visual movement information specifying these same motions. Results suggested that coordination of visual and proprioceptive inputs is constrained by infants' information processing of the displays and have…

The current work examined age differences in the classification of novel object images that vary in continuous dimensions of structural shape. The structural dimensions employed are two that share a privileged status in the visual analysis and representation of objects: the shape of discrete prominent parts and the attachment positions of those…

The "visual world paradigm" typically involves presenting participants with a visual scene and recording eye movements as they either hear an instruction to manipulate objects in the scene or as they listen to a description of what may happen to those objects. In this study, participants heard each target sentence only after the corresponding…

Prior research (DeLoache, Uttal & Rosengren, 2004) has documented that 18- to 30-month-olds occasionally make scale errors: they attempt to fit their bodies into or onto miniature objects (e.g. a chair) that are far too small for them. The current study explores whether scale errors are limited to actions that directly involve the child's…

The purpose of this study was to investigate whether differences in the level of visual complexity in motion visuals have an effect on cognitive learning of students in different grade levels. The instructional content was a 14-minute video lesson concerning the motion of objects in the universe. A 3 (levels of visual complexity) x 2 (grade…

A study consisting of two experiments attempted to further adapt the visual preference procedure for determining children's meaningful phonological perception. In the first experiment, 1-year-olds were presented with auditory stimuli (words) and screens containing paired color photographs of the object described by each word and of an unusual…

Although numerous studies have indicated that older persons process visual information more slowly than younger persons, the precise nature of age-associated changes in the processing of visually presented information remains unclear. Older adults (N=18) and college students (N=18) performed a visual search task in which lists of words and…

A large stratified sample of university undergraduate students differing in reading ability performed a diverse set of psychometric and information processing tasks in a study exploring the role of visual information processing skill as a component in reading ability. Using a correlation analysis of individual differences, the interrelationships…

A previous study by Gibson et al. (1972) that investigated the effect of orthographic structure on letter search was replicated and extended in order to identify factors that might explain the apparent discrepancy between their results and those of comparable studies. Experiment one tested whether the discrepancy might be explained by difference…