A procedure to effectively and efficiently train moderately and severely retarded individuals to make fine visual discriminations is described. Results suggest that expectancies for such individuals are in need of examination. Implications for sheltered workshops, work activity centers and classrooms are discussed. [This article appeared…

A study involving deaf and hearing children investigated the perceptual abilities of deaf children employing tasks with both simultaneously and sequentially presented stimulus material. A series of motion picture tests, mostly involving abstract geometric figures, suggested that deaf and hearing children are comparable on visual memory tasks and…

In answer to R. Allington's criticism of the Jordan Left-Right Reversal Test (JLRRT), the author contends that Allington's research used an outdated version of the JLRRT, that Allington's research into the relationship of visual reversals to reading skills does not reflect on the validity of the test to measure reversals. (DB)

The relationship between age of onset of blindness and development of knowledge of color relations was examined with 16 college students who had been born totally blind, 16 who had been blinded totally at approximately 15 years of age, and 16 who had normal vision. Ss were asked to judge the similarities between color names, and judgments were…

The span of apprehension (a measure of the amount of information processed simultaneously from a brief visual display) was studied in two experiments involving 40 normal and learning disabled boys (ages 6-11 years). (Author/DLS)

Sixty mentally retarded children (mean chronological age 19.4 years, mean mental age 5.2 years) were analyzed on their discrimination of 116 colored action pictures. (Author)