Reported were studies measuring residual auditory capacities of deaf persons and investigating hearing aids which transpose speech to lower frequencies where deaf persons may have better hearing. Studies on temporal and frequency discrimination indicated that the duration of a signal may have a differential effect on its detectability by…

Fifty-four kindergarten children were screened with the Sapir Developmental Scale to highlight deficiencies in bodily schema, perceptual motor skills, and language development, and were matched in groups of three by score, chronological age, and sex with one of the three acting as control. Three first grade classes were organized as follows: one…