The Performance of Aphasics on Automated Visuo-Perceptual Discrimination, Training, and Transfer Tasks

Abstract

The ability of 24 aphasics to make the perceptualdiscriminations, presumed to be basic to reading, was assessed and trained in automated fashion. Five training programs utilized forms abstracted as those necessary to compose the symbols of the English (Modern European) alphabet, and employed them in shape, up-down, and right-left discrimination tasks. A verbal transfer test was composed of sets of words, nonsense syllables, and individual letters. Data from the aphasic patients indicated that the training programs were effective in improving the latency of the discrimination response and that this improvement was manifested in general transfer to verbal test items. Training and transfer gains were maintained for at least a week after training. The results are interpreted as offering support for the view that form discrimination is a basic factor in at least the visual verbal aspect of language behavior. They also indicate that it is possible to design effective automated training procedures for use with patients who have frequently been considered untrainable.