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  • Title: Effects of age and duration of deafness on Mandarin speech understanding in competing speech by normal-hearing and cochlear implant children.
    Author: Tao DD, Liu YW, Fei Y, Galvin JJ, Chen B, Fu QJ.
    Journal: J Acoust Soc Am; 2018 Aug; 144(2):EL131. PubMed ID: 30180674.
    Abstract:
    Due to poor perception of fundamental frequency (F0) cues that are important for lexical tone perception and talker segregation, pediatric Chinese cochlear implant (CI) users may be especially susceptible to informational masking. Here, speech recognition thresholds (SRTs) were measured in steady noise or competing speech in Mandarin-speaking CI and normal-hearing (NH) children. CI children were more susceptible to informational masking and were unable to use F0 cues to segregate talkers. SRTs were significantly correlated with chronological age in NH children and with duration of deafness in CI children, suggesting that auditory deprivation may limit developmental processes important for talker segregation.
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