Weighting of Amplitude and Formant Rise Time Cues by School-Aged Children: A Mismatch Negativity Study Purpose An important skill in the development of speech perception is to apply optimal weights to acoustic cues so that phonemic information is recovered from speech with minimum effort. Here, we investigated the development of acoustic cue weighting of amplitude rise time (ART) and formant rise time (FRT) cues in ... Research Article
Research Article  |   May 17, 2018
Weighting of Amplitude and Formant Rise Time Cues by School-Aged Children: A Mismatch Negativity Study
 
Author Affiliations & Notes
  • Varghese Peter
    MARCS Institute for Brain, Behaviour and Development, Western Sydney University, Penrith, New South Wales, Australia
  • Marina Kalashnikova
    MARCS Institute for Brain, Behaviour and Development, Western Sydney University, Penrith, New South Wales, Australia
  • Denis Burnham
    MARCS Institute for Brain, Behaviour and Development, Western Sydney University, Penrith, New South Wales, Australia
  • Disclosure: The authors have declared that no competing interests existed at the time of publication.
    Disclosure: The authors have declared that no competing interests existed at the time of publication.×
  • Correspondence to Varghese Peter, who is now at the Department of Linguistics, Macquarie University, North Ryde, Australia: varghese.peter@mq.edu.au
  • Editor-in-Chief: Frederick (Erick) Gallun
    Editor-in-Chief: Frederick (Erick) Gallun×
  • Editor: Steve Aiken
    Editor: Steve Aiken×
Article Information
Hearing & Speech Perception / Acoustics / Professional Issues & Training / Speech, Voice & Prosody / Hearing / Research Articles
Research Article   |   May 17, 2018
Weighting of Amplitude and Formant Rise Time Cues by School-Aged Children: A Mismatch Negativity Study
Journal of Speech, Language, and Hearing Research, May 2018, Vol. 61, 1322-1333. doi:10.1044/2018_JSLHR-H-17-0334
History: Received September 5, 2017 , Revised January 23, 2018 , Accepted February 7, 2018
 
Journal of Speech, Language, and Hearing Research, May 2018, Vol. 61, 1322-1333. doi:10.1044/2018_JSLHR-H-17-0334
History: Received September 5, 2017; Revised January 23, 2018; Accepted February 7, 2018

Purpose An important skill in the development of speech perception is to apply optimal weights to acoustic cues so that phonemic information is recovered from speech with minimum effort. Here, we investigated the development of acoustic cue weighting of amplitude rise time (ART) and formant rise time (FRT) cues in children as measured by mismatch negativity (MMN).

Method Twelve adults and 36 children aged 6–12 years listened to a /ba/–/wa/ contrast in an oddball paradigm in which the standard stimulus had the ART and FRT cues of /ba/. In different blocks, the deviant stimulus had either the ART or FRT cues of /wa/.

Results The results revealed that children younger than 10 years were sensitive to both ART and FRT cues whereas 10- to 12-year-old children and adults were sensitive only to FRT cues. Moreover, children younger than 10 years generated a positive mismatch response, whereas older children and adults generated MMN.

Conclusion These results suggest that preattentive adultlike weighting of ART and FRT cues is attained only by 10 years of age and accompanies the change from mismatch response to the more mature MMN response.

Supplemental Material https://doi.org/10.23641/asha.6207608

Acknowledgments
This work was supported by Australian Research Council Discovery Project Grant DP110105123 awarded to the last author. We thank Susan Nittrouer for providing the stimuli, Rachel Lee and Scott O'Loughlin for their assistance in recruiting participants, and two anonymous reviewers for their helpful comments on an earlier version of the article. We thank all the adults, children, and their families who participated in the study.
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