Understanding vision is not a simple task. Nevertheless, a great deal is known about vision, more than about any of our other senses. The articles collected in this volume were chosen and organized with the intention of providing a survey of a number of different areas of vision research. Three major sections focus on the general categories of…

This study explores the reason why very young infants are unable to respond differentially to faces and the cause for developmental changes in infant face perception by age 3 months. Linear systems analysis (LSA) and the contrast sensitivity function (CSF) were used to estimate the facial pattern information available to 1- and 3-month-old…

Preferential looking behavior to stimuli varying in temporal frequency was examined in 11 prematurely born, Black and Hispanic infants when they were between 37 and 39 weeks of postconceptional age. Infants were tested one hour after they had fed on two successive days. Infants were unswaddled during testing on the first day, and swaddled during…

This research project assessed: (1) the practicality of recording heart rate in 18-month-old infants as they watched events filmed on color, silent motion picture films; and (2) the validity and sensitivity of heart rate change as an index of differential attention arousal elicited by changes within and between complex visual events. The research…

This study uses a habituation paradigm to systematically investigate the discrepancy hypothesis with male and female new borns. In addition, multiple visual response measures are used in monitoring the habituation process and the infant's response to various degrees of novelty. Ss were 36 apparently normal newborns (half of each sex) ranging in…

This document reports on a series of visual scanning studies done with Israeli preschoolers and kindergartners to resolve issues related to diagnostic test and instructional materials design. The first study assessed the effect of item content on error rate. Three multiple-choice tests, differing only in item content, were given to 38…

Two design strategies were tested on 69 elementary school children to investigate (1) the effect of using three types of pictorial supports to focus student attention on the important features of a concept or rule, and (2) the importance of specific pretraining instruction on using the pictorial to notice and label relevant rules and concepts.…

The eye movements of infants, between 4 and 11 weeks old, were recorded while they viewed either a representation of a face or nonface stimulus. (Author/SB)

Two studies explored the hypothesis that young children perceive integrally some stimuli that older children perceive separably. In both experiments, kindergarten, second- and fifth-grade children were required to classify sets of stimuli that varied in size and brightness. (SB)

By presenting moving bars of different widths to the two eyes, an attempt was made to model the differential visual persistence produced by differential intensity filtering in the two eyes (the Fertsch-Pulfrich effect). (Editor)