Two-letter stimulus displays, differing in the magnitude of the horizontal spatial separation between the letters, were presented tachistoscopically to 10 retarded and 1 nonretarded adults. (Author/CL)

This study is a detailed analysis of the course of habituation of preschool children to visual stimuli using behavioral measures as data. (Author/SB)

Two experiments examined preschoolers' visual and verbal coding processes in a pictorial short-term memory task. Results of both experiments indicated that high visual similarity had a deleterious effect on recall accuracy regardless of the verbal codability of the stimuli. (Author/JMB)

An experiment is reported in which 25 listeners were presented with pairs of stimuli of equal duration, but differing in fundamental frequency, and were asked to decide which of the two stimuli was longer. (Author/RM)

Groups of 7 1/2-month-old infants heard 1 of 8 episodes consisting of no, slight, moderate, or large discrepancy between a habituated standard and a transformed auditory stimulus. Patterns of cardiac deceleration supported the hypothesis that attentiveness is an inverted-U function of the degree of discrepancy between stimulus event and schema.…

Marks (1973) and Gur & Hilgard (1975) have reported success in predicting performance in visual-memory tasks from scores in a questionnare of self-rated vividness of imagery, i.e. the Vividness of Visual Imagery Questionnaire (VVIQ; Marks, 1973). These findings were disconfirmed in two experiments in which the VVIQ was used and vivid pictures…

Described is a prosthesis that connects a television camera and associated circuitry to the visual centers of the brain to restore a limited amount of visual sensation to totally blind persons. (Author/MH)

Two studies examined recognition memory for pictures in elementary school children and adults. Photographs were used which showed either single objects or multi-object scenes and distractors which differed from targets in that an element had been added, an original element moved, or the vantage point changed. (Author/JMB)

The influence of stimulus number and familiarity on judged duration were investigated. Results showed that the number of stimulus elements presented within a given interval affected its perceived duration, although the familiarity of those elements (as defined herein) did not. (Editor/RK)

Rats performed an intermittently reinforced operant response and received periodic presentations of a visual conditioned stimulus (CS) located either very near or far from the operant manipulandum. Findings suggest there are deficiencies in the general accounts of conditioned suppression that stress the motivational or emotional effects of…

To improve memory in children in early grades or in children at all ages with cognitive problems, it is suggested that the teacher provide verbal interpretations of pictorial information, encourage children to verbalize the pictured material for themselves, and encourage children to create their own mental pictures. (SBH)

To determine whether young children consistently employ a visual code for remembering pictures in serial recall, 36 preschool children were asked to match picture lists composed of visually similar, phonetically similar, or unrelated items. (JMB)

In order to determine the ability of children aged 3-8 years to reproduce patterns of different levels of complexity, 60 children were asked to reproduce checkerboard patterns at 3 levels of complexity, measured by code length as suggested by H. A. Simon. (Author/SB)

Investigated were the attending behaviors of 70 moderately and severely retarded adolescents when exposed to various instructional media forms. (Author/DB)