Hoffman P R, Daniloff R G, Alfonso P J, Schuckers G H
Percept Mot Skills. 1984 Apr;58(2):603-10. doi: 10.2466/pms.1984.58.2.603.
6 language-impaired misarticulating and 6 normal kindergarten children produced and perceived differences in word-initial stop consonant voicing. Individuals' productive and perceptual phonemic boundaries were similar. No statistically reliable differences were noted between the groups' mean productive or perceptual boundaries. Individual exceptions suggest that some misarticulating , language-impaired children may be inordinately challenged by synthetic speech stimuli or may pass through a developmental stage in which perceptual ability outstrips productive ability.
