Sixteen students (6-26 years old) with developmental dyslexia or hyperactivity and 16 controls were administered the Peabody Picture Vocabulary Test (PPVT) and the Revised test (PPVT-R). Increased numbers of perceptually loaded plates accounted for a decrease in IQ scores for dyslexic hyperactive Ss on the revised test. (CL)

The author discusses the role of educational "crutches" that help elementary learning disabled children in tasks involving spatial orientation, visual perception, and auditory short-term memory. Teachers are cautioned to observe how children act in different situations and to allow them whatever "crutches" are effective. (CL)

Paper is based on a Master's Thesis submitted by the senior author to the Department of Psychology, Brandeis University, 1967. (IR)

An Ames static trapezoidal window was used to test infants' responsiveness to pictorial depth. Sensitivity to the pictorial information for depth that is present in the trapezoidal window appears to develop after the age of 22 weeks. (Author/DB)

Three studies investigated infants' and young children's perception of the unity of musical events. Results indicated that properties specific to musical instrument families are relevant for young children's perception of musical events. Specific experience with a variety of instruments is evidently not necessary for detecting correspondences of…

Tested infants' latency in turning toward stimulus patterns and the duration of their initial fixation. Results showed that "turning latency" fell in a linear manner from 36 to 120 weeks after conception. Fixation time fell abruptly at 53 weeks. Preterm and full-term infants showed the same developmental trends. (BC)

Investigated early determinants of infants' self--other discrimination when presented with a live image of themselves or another person that was either contingent or contingent with delay. Found that infants 4 months and older perceived and acted differently when facing the image of themselves compared to that of another; 9-month-olds showed more…

Several studies have reported that individuals with autism and Asperger's syndrome show a local processing bias on tasks involving features and configurations. This study assessed whether this bias results from differences in the perception of features or a cognitive bias to attend to features in autism as a consequence of a deficit in attending…

Suggests that perceptual problems may account for the difficulty young children experience in recognizing words. (RB)

The ability of 3-, 4-, and 5-year-old children to infer the position of an object in a room from information contained on a map was assessed under five conditions: (1) map aligned inside the room (the pretest); (2) map aligned outside the room; (3) map rotated 180 degrees inside the room; (4) map rotated 180 degrees outside the room; (5) map held…

This study suggests and identifies computer image generation (CIG) algorithms for visual simulation that improve the training effectiveness of CIG simulators and identifies areas of basic research in visual perception that are significant for improving CIG technology. The first phase of the project entailed observing three existing CIG simulators.…