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- Title
Effects of Fundamental Frequency Contours on Sentence Recognition in Mandarin-Speaking Children With Cochlear Implants.
- Authors
Wanting Huang; Wong, Lena L. N.; Fei Chen; Haihong Liu; Wei Liang
- Abstract
Purpose: Fundamental frequency (F0) is the primary acoustic cue for lexical tone perception in tonal languages but is processed in a limited way in cochlear implant (CI) systems. The aim of this study was to evaluate the importance of F0 contours in sentence recognition in Mandarin-speaking children with CIs and find out whether it is similar to/different from that in age-matched normal-hearing (NH) peers. Method: Age-appropriate sentences, with F0 contours manipulated to be either natural or flattened, were randomly presented to preschool children with CIs and their agematched peers with NH under three test conditions: in quiet, in white noise, and with competing sentences at 0 dB signal-to-noise ratio. Results: The neutralization of F0 contours resulted in a significant reduction in sentence recognition. While this was seen only in noise conditions among NH children, it was observed throughout all test conditions among children with CIs. Moreover, the F0 contour-induced accuracy reduction ratios (i.e., the reduction in sentence recognition resulting from the neutralization of F0 contours compared to the normal F0 condition) were significantly greater in children with CIs than in NH children in all test conditions. Conclusions: F0 contours play a major role in sentence recognition in both quiet and noise among pediatric implantees, and the contribution of the F0 contour is even more salient than that in age-matched NH children. These results also suggest that there may be differences between children with CIs and NH children in how F0 contours are processed.
- Subjects
TREATMENT of hearing disorders; ANALYSIS of variance; COCHLEAR implants; LANGUAGE acquisition; NOISE; PHYSIOLOGICAL aspects of speech; SPEECH perception in children; STATISTICS; DATA analysis; PHONOLOGICAL awareness; REPEATED measures design
- Publication
Journal of Speech, Language & Hearing Research, 2020, Vol 63, Issue 11, p3855
- ISSN
1092-4388
- Publication type
Article
- DOI
10.1044/2020_JSLHR-20-00033