Stimulus over-selectivity is a phenomenon displayed by individuals with autism, and has been implicated as a basis for many autistic-spectrum symptoms. In four experiments, non-autistic adult participants were required to learn a simple discrimination using picture cards, and then were tested for the emergence of stimulus over-selectivity, both…

The presence of location-dependent and location-independent benefits on object identification in an eye movement contingent preview paradigm has been taken as support for the transsaccadic integration of object types and object tokens (J. M. Henderson, 1994). A recent study, however, suggests a critical role for saccade targeting in the generation…

Three experiments were conducted to investigate the role of object representations in object substitution masking (OSM). OSM occurs when a very sparse mask is presented simultaneously with a target stimulus and the target offsets first, leaving the mask to linger in the display for some time. Results confirm earlier claims that there is an…

The authors conducted 3 experiments to explore the roles of curvature, density, and relative proximity in the perceptual organization of ambiguous dot patterns. To this end, they developed a new family of regular dot patterns that tend to be perceptually grouped into parallel contours, dot-sampled structured grids (DSGs). DSGs are similar to the…

Meaningful visual experience requires computations that identify objects as the same persisting individuals over time, motion, occlusion, and featural change. This article explores these computations in the tunnel effect: When an object moves behind an occluder, and then an object later emerges following a consistent trajectory, observers…

Developmental studies of face processing have revealed age-related changes in how infants allocate neurophysiological resources to the face of a caregiver and an unfamiliar adult. We hypothesize that developmental changes in how infants interact with their caregiver are related to the changes in brain response. We studied 6-month-olds because this…

This research examined the developmental course of infants' ability to perceive affect in bimodal (audiovisual) and unimodal (auditory and visual) displays of a woman speaking. According to the intersensory redundancy hypothesis (L. E. Bahrick, R. Lickliter, & R. Flom, 2004), detection of amodal properties is facilitated in multimodal stimulation…

This article describes tests which examined at what ages children could correctly identify right and left sides of pictures of themselves, another person, or an object. (CD)

A discussion of visual field, foveal and peripheral vision, eye fixations, recognition and recall of pictures, memory for meaning of pictures, and the relation between speed of presentation and memory. (Editor)

Based on a master's thesis submitted to the University of Illinois.

A THEORY OF STRUCTURE IS ESSENTIAL TO AN OBJECTIVE ORGANIZATION OF BASIC PEDAGOGIES IN DESIGN. THE PURPOSE OF THIS STUDY WAS TO ASSESS THE STRUCTURAL THEORY OF MATHEMATICIAN K.L. WOLF AND TO TRANSLATE THIS THEORY INTO A VISUAL PRODUCT THAT COULD BE USED BY BEGINNING DESIGN STUDENTS. WOLF DESCRIBES 6 ISOMORPHIC COVERAGE OPERATIONS AND 7…

VISUAL TRAINING IS DEFINED AS THE FIELD OF OCULAR REEDUCATION AND REHABILITATION OF THE VARIOUS VISUAL SKILLS THAT ARE OF PARAMOUNT IMPORTANCE TO SCHOOL ACHIEVEMENT, AUTOMOBILE DRIVING, OUTDOOR SPORTS ACTIVITIES, AND OCCUPATIONAL PURSUITS. A HISTORY OF ORTHOPTICS, THE SUGGESTED NAME FOR THE ENTIRE FIELD OF OCULAR REEDUCATION, IS GIVEN. READING AS…