Human recognition behavior is influenced by the phenomenon of shape constancy, which occurs when the shape of an object is correctly perceived regardless of the orientation of the object in space. The research reported here tests the validity of the shape-slant invariance hypothesis, a theoretical formulation of the phenomenon of shape constancy.…

The two experiments reported are part of a series evaluating effects of display parameters, task variables, and operator perceptual limitations on ability of Night Vision Device operators to process visual information quickly and accurately. For untrained observers, target brightness requirements were higher for identification than for detection,…

This 115-page annotated bibliography contains material on perceptual motor development. The introductory portion of the bibliography presents general reading on perception, learning, and development. The first portion contains annotated works by six specific authors. The second portion presents works grouped under the following headings: a)…

Reported were estimates of the uncorrected binocular visual acuity levels of distance and near for children aged 6 to 11 years in the noninstitutional population of the United States in relation to their demographic and socioeconomic background. A sample of 7,119 children participated in the Health Examination Survey program of 1963-65. Findings…

The differential visual responses of 20 Down's Syndrome and 20 normal infants (CA 8 months) to 13 pairs of visual targets were compared. Although DS subjects generally looked longer at the stimuli than normal subjects, they showed a response differential in only 3 stimulus pairs compared to 11 for the normals. Six of the stimulus pairs elicited…

The main purpose of this investigation was to study the relationships between visual memory and early reading achievement. Short term and intermediate memory were examined in relation to vocabulary, reading comprehension, and reading readiness in first grade pupils. The Gates MacGinitie Readiness Skills Test; the Visual Memory for Designs Tests,…

Feeling that the key problem in working with delinquent adolescents is to help them bring their antisocial behaviors under control and establish more socially acceptable behaviors, the author points out that an important step is to change the pupil' attitudes about reading, test-taking, schools, and teachers. Suggested methods of motivation are…

A sample of 194 high-school students participated in an investigation of Geyer's hypothesis that the reading or prose takes place by sequential acquisition during the fixational pause of the eye. A measure of sequential acquisition time was obtained using a movie which displayed six-letter words one letter at a time: students were asked to write…

This investigation, based on the phenomenological philosophy of Alfred Schutz, was an attempt to determine how people view films by determining the meaning that the action has for them. Twenty college freshmen and sophomores and two seniors viewed the film "Tilt," a production of the National Film Board of Canada. All subjects were asked…

Fifty-eight undergraduates took part in an experiment evaluating a full-spectrum light closely approximating natural sunlight and a cool-white fluorescent light commonly used in institutional settings. Four classes of a single teaching assistant were used and each class was compared against itself under different lighting conditions. Data were…

The present study attempted to uncover some of the psychological processes which mediate the relationship between visual behavior and feelings of intimacy, and to clarify the conceptual and methodological issues raised by such an endeavor. (Author/RK)

Reports two experiments which examined developmental changes in the patterns of preference for varying degrees of perspective while controlling for the station point used in viewing. Subjects were 28 preschool children (age four years), 23 elementary school students (age six years) and 30 college students from introductory psychology classes. (MP)

Groups of eight- and ten-year-olds and adults visually searched for the presence of a target letter or number in fields of items that were either of the same or a different category (letter or number) than the target. (JMB)

Notes that the fluent reader needs rapid perception, the ability to use semantic and syntactic clues, and sophisticated comprehension strategies. (MKM)

In order to investigate the role of visual perceptual abilities in the acquisition and comprehension of sign language, four tests of perceptual ability were administered to 120 entering hearing-impaired students and 23 new hearing staff members at the National Technical Institute for the Deaf. (Author)