The hypothesis was that the two hemispheres have different functions in normal vision, the dominant one analyzing the "figure," and the nondominant the "background." The investigation examined responses of 41 female psychology students. Results were consistent with the hypothesis. (Author/RD)

Repeated observations of a colored form results in slower reaction-time responses to the familiarized stimulus than to a comparable novel stimulus due to alertness decrement and encoding facilitation. This two-factor theory of repetition was found to hold for words as well as for colors. (Author/BW)

Presents results of two experiments which measured contrast sensitivity function in infants. Information concerning development of visual acuity, low frequency attenuation, and sensitivity to contrast were collected. Results provide an approximate picture of and means for detection of infants' pattern information. (Author/DB)

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)

In Experiment I, 24 preschoolers were tested on left-right, vertical-horizontal, and mirror-image oblique discriminations under essentially context-free conditions. Experiment II contrasted children's performance under context-free conditions with their ability to discriminate orientation in the presence of external visual cues. (RH)

This study investigated whether object-picture discrepancy occurs because preschool children regard pictures as significates rather than as signifiers. Results indicated the children did not consistently respond to objects and their pictorial representations equivalently. (Author/DB)

The ability of young infants between the ages of 8 and 17 weeks to perceive outline shapes was investigated in nine experiments using an habituation paradigm. (JMB)

In order to shed light on the needs of children with cortical visual impairments, normal visual development of infants is described. Infant preferences for motion, faces, and black-and-white patterns are explained. Colors useful in stimulating vision development and the time needed for exposure to visual stimuli are discussed. (CR)

Visual scanning patterns of 17 students with mental retardation and control groups matched for chronological or mental age were recorded during visuomotor tasks. Results suggested that subjects paid more attention to penpoints than to the succeeding or passed points of a model line, indicating that they have a poorer ability to process more than…

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…

Four experiments tested four month olds on visual discrimination tasks. As the time allotted to solve these problems was shortened, infants who looked at stimuli for a short amount of time performed better than other infants, indicating that performance superiority was attributable to speed of processing. (BC)

Assessed 13- and 20-week-olds infants' discrimination between shearing stimuli, in which columns of dots move vertically on a screen at different velocities, and foil stimuli, in which all dots move at the same velocity. Results revealed the threshold levels of dot velocity in shearing stimuli at which discrimination occurred. (BC)

Tested the ability of 3.5-month-old infants to detect audiovisual relations. Results demonstrated infants' visual recovery to changes in temporal synchrony of sight and sound and in composition of objects. Infants did not demonstrate visual recovery to changes in the relationship between pitch and color or shape. (BC)

A study examined how well children could discriminate matches from nonmatches of multicomponent stimuli within the prototypic mental rotation task and how long it would take them to make such discriminations. The goal was to determine whether children are differentially sensitive to the various spatial features of visual stimuli and whether…