Examined the effects of rounded and unrounded vowels on the perception of the voiceless fricatives "s" and "sh" by adults and by young children who could and could not produce both sounds. Concluded that productive mastery is not critically responsible for perception of the distinction between the two phonemes or the…

This study investigated the effectiveness of articulation training (daily sessions for 8 weeks) on the production of phonemes by 12 hearing impaired children (ages 5-10). Results suggest that phonemes with an intermediate error rate (trained at a phonological level) are easier to train than phonemes with a high error rate (trained at a phonetic…

This study examined effects of familiarity with a speech target on coarticulation magnitude in 30 young children and 10 adults. Children exhibited a greater effect of a following vowel on the preceding fricative than did adults. Nonmeaningful production items exhibited greater effects of the vowel on the preceding fricative than did meaningful…

This study examined whether toddlers build a repertoire of words as integral sequences of gestures and then differentiate these sequences into their gestural and segmental components. Results demonstrate clear differences in duration and coordination of gestures between children and adults and a shift toward the patterns of adult speakers during…

Reports on a single subject research study conducted by a speech clinician in a public school setting and describes the experience of the dual role of clinician and investigator. Although the two students' correct articulation efforts in the regular classroom dramatically improved during the intervention, the rate at follow-up was similar to that…