Effects of Stimulus Bandwidth on the Imitation of English Fricatives by Normal-Hearing Children

Autor/inn/en	Stelmachowicz, Patricia G.; Nishi, Kanae; Choi, Sangsook; Lewis, Dawna E.; Hoover, Brenda M.; Dierking, Darcia; Lotto, Andrew
Titel	Effects of Stimulus Bandwidth on the Imitation of English Fricatives by Normal-Hearing Children
Quelle	In: Journal of Speech, Language, and Hearing Research, 51 (2008) 5, S.1369-1380 (12 Seiten) PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	1092-4388
DOI	10.1044/1092-4388(2008/07-0115)
Schlagwörter	Cues; Phonology; Hearing Impairments; Acoustics; Language Acquisition; Children; Syllables; Auditory Perception; English + Suchen Sie Ihr Suchwort? Stichwort; Fonologie; Hearing impairment; Hörbehinderung; Akustik; Sprachaneignung; Spracherwerb; Child; Kind; Kinder; Silbe; Auditive Wahrnehmung; Akustische Wahrnehmung; English language; Englisch
Abstract	Purpose: Recent studies from the authors' laboratory have suggested that reduced audibility in the high frequencies (because of the bandwidth of hearing instruments) may play a role in the delays in phonological development often exhibited by children with hearing impairment. The goal of the current study was to extend previous findings on the effect of bandwidth on fricatives/affricates to more complex stimuli. Method: Nine fricatives/affricates embedded in 2-syllable nonsense words were filtered at 5 and 10 kHz and presented to normal-hearing 6- to 7-year-olds who repeated words exactly as heard. Responses were recorded for subsequent phonetic and acoustic analyses. Results: Significant effects of talker gender and bandwidth were found, with better performance for the male talker and the wider bandwidth condition. In contrast to previous studies, relatively small (5%) mean bandwidth effects were observed for /s/ and /z/ spoken by the female talker. Acoustic analyses of stimuli used in the previous and the current studies failed to explain this discrepancy. Conclusions: It appears likely that a combination of factors (i.e., dynamic cues, prior phonotactic knowledge, and perhaps other unidentified cues to fricative identity) may have facilitated the perception of these complex nonsense words in the current study. (As Provided).
Anmerkungen	American Speech-Language-Hearing Association (ASHA). 10801 Rockville Pike, Rockville, MD 20852. Tel: 800-638-8255; Fax: 301-571-0457; e-mail: subscribe@asha.org; Web site: http://www.asha.org/about/publications/journal-abstracts/jslhr/
Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10