Effects of manipulating the amplitude of consonant noise portion on subcortical representation of voice onset time and voicing perception in stop consonants

Shunsuke Tamura, Kazuhito Ito, Nobuyuki Hirose, Shuji Mori

Research output: Contribution to journalArticle

Abstract

Purpose: The purpose of this study was to investigate whether speech perception would reflect small latency changes in subcortical speech representation. Method: Twelve native Japanese listeners participated in the experiment. Those listeners participated in speech identification task and auditory brainstem response (ABR) measurement using /d/–/t/ continuum stimuli varying in voice onset time (VOT) with manipulation of the amplitude of initial noise (consonant) portion, the duration of which corresponded to VOT. Results: Increasing the noise portion amplitude lengthened subcortical representation of VOT, which is the latency difference between ABRs synchronizing to the onsets of initial noise and following periodic (vowel) portions (VOT ABR ) and made listeners likely to perceive the stimuli with ambiguous VOT as a voiceless stop /t/. In addition, the amount of VOT ABR lengthening was close to that of the VOT boundary shortening. Conclusion: A few milliseconds of difference in subcortical speech representation are important for the perception of speech sounds with ambiguous acoustic cues.

Original languageEnglish
Pages (from-to)434-441
Number of pages8
JournalJournal of Speech, Language, and Hearing Research
Volume62
Issue number2
DOIs
Publication statusPublished - Feb 1 2019

Fingerprint

Time Perception
Noise
Brain Stem Auditory Evoked Potentials
listener
stimulus
Speech Perception
Phonetics
time
Voice Onset Time
Voicing
Consonant
Stop Consonants
Acoustics
acoustics
Cues
manipulation
experiment

All Science Journal Classification (ASJC) codes

  • Language and Linguistics
  • Linguistics and Language
  • Speech and Hearing

Cite this

@article{028c6a3fff754d44901e6fa6349fb552,
title = "Effects of manipulating the amplitude of consonant noise portion on subcortical representation of voice onset time and voicing perception in stop consonants",
abstract = "Purpose: The purpose of this study was to investigate whether speech perception would reflect small latency changes in subcortical speech representation. Method: Twelve native Japanese listeners participated in the experiment. Those listeners participated in speech identification task and auditory brainstem response (ABR) measurement using /d/–/t/ continuum stimuli varying in voice onset time (VOT) with manipulation of the amplitude of initial noise (consonant) portion, the duration of which corresponded to VOT. Results: Increasing the noise portion amplitude lengthened subcortical representation of VOT, which is the latency difference between ABRs synchronizing to the onsets of initial noise and following periodic (vowel) portions (VOT ABR ) and made listeners likely to perceive the stimuli with ambiguous VOT as a voiceless stop /t/. In addition, the amount of VOT ABR lengthening was close to that of the VOT boundary shortening. Conclusion: A few milliseconds of difference in subcortical speech representation are important for the perception of speech sounds with ambiguous acoustic cues.",
author = "Shunsuke Tamura and Kazuhito Ito and Nobuyuki Hirose and Shuji Mori",
year = "2019",
month = "2",
day = "1",
doi = "10.1044/2018_JSLHR-H-18-0102",
language = "English",
volume = "62",
pages = "434--441",
journal = "Journal of Speech, Language, and Hearing Research",
issn = "1092-4388",
publisher = "American Speech-Language-Hearing Association (ASHA)",
number = "2",

}

TY - JOUR

T1 - Effects of manipulating the amplitude of consonant noise portion on subcortical representation of voice onset time and voicing perception in stop consonants

AU - Tamura, Shunsuke

AU - Ito, Kazuhito

AU - Hirose, Nobuyuki

AU - Mori, Shuji

PY - 2019/2/1

Y1 - 2019/2/1

N2 - Purpose: The purpose of this study was to investigate whether speech perception would reflect small latency changes in subcortical speech representation. Method: Twelve native Japanese listeners participated in the experiment. Those listeners participated in speech identification task and auditory brainstem response (ABR) measurement using /d/–/t/ continuum stimuli varying in voice onset time (VOT) with manipulation of the amplitude of initial noise (consonant) portion, the duration of which corresponded to VOT. Results: Increasing the noise portion amplitude lengthened subcortical representation of VOT, which is the latency difference between ABRs synchronizing to the onsets of initial noise and following periodic (vowel) portions (VOT ABR ) and made listeners likely to perceive the stimuli with ambiguous VOT as a voiceless stop /t/. In addition, the amount of VOT ABR lengthening was close to that of the VOT boundary shortening. Conclusion: A few milliseconds of difference in subcortical speech representation are important for the perception of speech sounds with ambiguous acoustic cues.

AB - Purpose: The purpose of this study was to investigate whether speech perception would reflect small latency changes in subcortical speech representation. Method: Twelve native Japanese listeners participated in the experiment. Those listeners participated in speech identification task and auditory brainstem response (ABR) measurement using /d/–/t/ continuum stimuli varying in voice onset time (VOT) with manipulation of the amplitude of initial noise (consonant) portion, the duration of which corresponded to VOT. Results: Increasing the noise portion amplitude lengthened subcortical representation of VOT, which is the latency difference between ABRs synchronizing to the onsets of initial noise and following periodic (vowel) portions (VOT ABR ) and made listeners likely to perceive the stimuli with ambiguous VOT as a voiceless stop /t/. In addition, the amount of VOT ABR lengthening was close to that of the VOT boundary shortening. Conclusion: A few milliseconds of difference in subcortical speech representation are important for the perception of speech sounds with ambiguous acoustic cues.

UR - http://www.scopus.com/inward/record.url?scp=85064158771&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85064158771&partnerID=8YFLogxK

U2 - 10.1044/2018_JSLHR-H-18-0102

DO - 10.1044/2018_JSLHR-H-18-0102

M3 - Article

C2 - 30950688

AN - SCOPUS:85064158771

VL - 62

SP - 434

EP - 441

JO - Journal of Speech, Language, and Hearing Research

JF - Journal of Speech, Language, and Hearing Research

SN - 1092-4388

IS - 2

ER -