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Journal of the Acoustical Society of America / Volume 131 / Issue 2 / PHYSIOLOGICAL ACOUSTICS [64]

Effect of cochlear implants on children’s perception and production of speech prosody

J. Acoust. Soc. Am. Volume 131, Issue 2, pp. 1307-1314 (2012); (8 pages)

Takayuki Nakata1, Sandra E. Trehub2, and Yukihiko Kanda3

1Department of Complex and Intelligent Systems, Future University Hakodate, 116-2 Kamedanakano, Hakodate, Hokkaido 041-8655, Japan
2Department of Psychology, University of Toronto, 3359 Mississauga Road North, Mississauga, Ontario L5L 1C6, Canada
3Kanda ENT Clinic and Nagasaki Bell Hearing Center, 4-25 Wakakusa-machi, Nagasaki, Nagasaki 852-8023, Japan

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Japanese 5- to 13-yr-olds who used cochlear implants (CIs) and a comparison group of normally hearing (NH) Japanese children were tested on their perception and production of speech prosody. For the perception task, they were required to judge whether semantically neutral utterances that were normalized for amplitude were spoken in a happy, sad, or angry manner. The performance of NH children was error-free. By contrast, child CI users performed well below ceiling but above chance levels on happy- and sad-sounding utterances but not on angry-sounding utterances. For the production task, children were required to imitate stereotyped Japanese utterances expressing disappointment and surprise as well as culturally typically representations of crow and cat sounds. NH 5- and 6-year-olds produced significantly poorer imitations than older hearing children, but age was unrelated to the imitation quality of child CI users. Overall, child CI user’s imitations were significantly poorer than those of NH children, but they did not differ significantly from the imitations of the youngest NH group. Moreover, there was a robust correlation between the performance of child CI users on the perception and production tasks; this implies that difficulties with prosodic perception underlie their difficulties with prosodic imitation.

© 2012 Acoustical Society of America

ACKNOWLEDGMENTS

This research was supported by grants from the Japan Society for the Promotion of Science to T.N. and from the Natural Sciences and Engineering Research Council of Canada to S.E.T. We gratefully acknowledge the cooperation of many parents and children whose participation made this study possible. We also acknowledge the insightful advice of Dr. Haruo Takahashi and Hideo Tanaka and assistance with data collection from Akiko Ito, Yumiko Kido, Yoko Kakita, Noriko Matsunaga, Kyoko Ohba, Kyoko Sasaki, and Naoko Maruo.

Article Outline

  1. INTRODUCTION
  2. METHOD
    1. Participants
    2. Apparatus
    3. Stimuli
    4. Procedure
  3. RESULTS
  4. DISCUSSION

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KEYWORDS, PACS, and IPC

Keywords

cochlear implants, hearing, paediatrics, speech intelligibility

PACS

  • 43.64.Me

    Effects of electrical stimulation, cochlear implant

  • 43.70.Mn

    Relations between speech production and perception

  • 43.71.Ky

    Speech perception by the hearing impaired

  • 43.66.Ts

    Auditory prostheses, hearing aids

International Patent Classification (IPC)

  • A61F2/18

    Internal ear or nose parts, e.g. ear-drums

ARTICLE DATA

History
Received 10 Jun 2010
Accepted 30 Nov 2011
Revised 30 Nov 2011
Digital Object Identifier
http://dx.doi.org/10.1121/1.3672697

PUBLICATION DATA

ISSN

0001-4966 (print)  

Publisher

$abstract.society.value is a Member of CrossRef Acoustical Society of America

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