A near-infrared spectroscopy study on cortical hemodynamic responses to normal and whispered speech in 3- to 7-year-old children

Gerard Bastiaan Remijn, Mitsuru Kikuchi, Yuko Yoshimura, Kiyomi Shitamichi, Sanae Ueno, Tsunehisa Tsubokawa, Haruyuki Kojima, Haruhiro Higashida, Yoshio Minabe

Research output: Contribution to journalArticle

Abstract

Purpose: The purpose of this study was to assess cortical hemodynamic response patterns in 3- to 7-year-old children listening to two speech modes: normally vocalized and whispered speech. Understanding whispered speech requires processing of the relatively weak, noisy signal, as well as the cognitive ability to understand the speaker’s reason for whispering. Method: Near-infrared spectroscopy (NIRS) was used to assess changes in cortical oxygenated hemoglobin from 16 typically developing children. Results: A profound difference in oxygenated hemoglobin levels between the speech modes was found over left ventral sensorimotor cortex. In particular, over areas that represent speech articulatory body parts and motion, such as the larynx, lips, and jaw, oxygenated hemoglobin was higher for whisper than for normal speech. The weaker stimulus, in terms of sound energy, thus induced the more profound hemodynamic response. This, moreover, occurred over areas involved in speech articulation, even though the children did not overtly articulate speech during measurements. Conclusion: Because whisper is a special form of communication not often used in daily life, we suggest that the hemodynamic response difference over left ventral sensorimotor cortex resulted from inner (covert) practice or imagination of the different articulatory actions necessary to produce whisper as opposed to normal speech.

Original languageEnglish
Pages (from-to)465-470
Number of pages6
JournalJournal of Speech, Language, and Hearing Research
Volume60
Issue number2
DOIs
Publication statusPublished - Feb 1 2017

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Near-Infrared Spectroscopy
Hemoglobins
Hemodynamics
Neurovascular Coupling
Infrared Spectroscopy
Imagination
Aptitude
cognitive ability
Larynx
Lip
Jaw
Human Body
stimulus
Communication
energy
communication

All Science Journal Classification (ASJC) codes

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

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A near-infrared spectroscopy study on cortical hemodynamic responses to normal and whispered speech in 3- to 7-year-old children. / Remijn, Gerard Bastiaan; Kikuchi, Mitsuru; Yoshimura, Yuko; Shitamichi, Kiyomi; Ueno, Sanae; Tsubokawa, Tsunehisa; Kojima, Haruyuki; Higashida, Haruhiro; Minabe, Yoshio.

In: Journal of Speech, Language, and Hearing Research, Vol. 60, No. 2, 01.02.2017, p. 465-470.

Research output: Contribution to journalArticle

Remijn, Gerard Bastiaan ; Kikuchi, Mitsuru ; Yoshimura, Yuko ; Shitamichi, Kiyomi ; Ueno, Sanae ; Tsubokawa, Tsunehisa ; Kojima, Haruyuki ; Higashida, Haruhiro ; Minabe, Yoshio. / A near-infrared spectroscopy study on cortical hemodynamic responses to normal and whispered speech in 3- to 7-year-old children. In: Journal of Speech, Language, and Hearing Research. 2017 ; Vol. 60, No. 2. pp. 465-470.
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