The paper examines issues concerned with the incidence of visual perceptual learning disabilities among deaf and partially hearing children. Evidence indicating a high incidence (15.5 percent of 682 deaf students) of visual perceptual deficits is offered, as is a definition of visual perception. The impact of visual perceptual deficits on…

While all languages use shape to classify unfamiliar objects, some languages as diverse as Mandarin, Thai, Japanese, Mohawk, and American Sign Language lexicalize these and other types of description as noun classifiers. Classification does not develop from a fixed set of features in the object, but is discourse-sensitive and invoked when it would…