An examination of the extent to which adults and children (7 and 11 years old) were able to make discriminations between fixations directed at their eyes and at different positions on their faces. (SDH)

Eighteen profoundly retarded men (mean age 41) were given repeated presentations of a two-choice visual discrimination using a modified Wisconsin General Test Apparatus and two probabilistic reinforcement schedules counterbalanced for order. (Author)

Thirty subjects were presented with a visual form discrimination task requiring them to match Roman letters when a variety of transformations were held constant. They were given massed practice across four blocks of eight stimuli. Results of a repeated measures analysis of variance showed support for the distinctive features hypothesis. (JC)

The holistic-discriminability model of object-space perception recognizes various classes of stimuli having different task requirements, with few assumptions. The alternative analytic model, contrary to Dykes and Cooper, is inadequate; it involves many assumptions, predicts only a limited set of data and makes some incorrect predictions.…

Previous studies have found that an object can be categorized faster at a basic level (hammer) than at either a subordinate (club hammer) or a superordinate level (tool). While some attribute this result to basic categories having more distinctive attributes, other factors might cause this result. For example, basic categories routinely have…

Discusses the theory and research underlying the use of realistic and compressed images or representational images developed from 1950-80 using print, slides, and film media. Topics include the theories of visual realism, visual realism and instruction, and the foundations of visual compression. (20 references) (KRN)

THE MERITS OF VISUAL AND AUDITORY STIMULI AT EACH STAGE OF THE LEARNING PROCESS WERE PRESENTED IN THIS WORKING PAPER. SPECIAL ATTENTION WAS GIVEN TO THE DIFFERENCES IN RESPONSES REQUIRED AT EACH STAGE AND THEIR CONTROL BY THE NATURE OF THE LEARNING TASK. THE PROBLEM WAS APPROACHED BY A CONSIDERATION OF THE BASIC PROPERTIES OF WORDS AND PICTURES…

Whether additional cues in visualized materials add to their instructional value is a question answered differently by various educational theorists. In the eight studies reviewed, experiments were designed to answer this question and other questions related to it. In three media studies using the same four treatments (oral presentation without…

Orthographic context and visual letter information were independently varied in a letter recognition task. The results contradicted the qualitative predictions of nonindependence theories of reading and are accurately described by a quantification of independence theory. (Author/CP)

Four-, five-, and six-year-old children were used as subjects in this investigation. There were 192 experimental and 96 control children used, divided equally between the three age groups. The experimental children received a 1-minute pretest exposure procedure in which 1/4 of the children observed 4 two-dimensional stimuli (irregular pentagons),…

A theory for the visual and cognitive processing, which accounts for slower naming of pictures than reading of words, is introduced. Two experiments assessed the differences distinguishing word reading and picture naming, using 58 undergraduates. The coding of the mind is neither intrinsically linguistic nor imagistic; it is abstract. (TJH)