Rapid maturation of voice and linguistic processing systems in preschool children: A near-infrared spectroscopic study

Takao Yamasaki, Katsuya Ogata, Toshihiko Maekawa, Ikue Ijichi, Masatoshi Katagiri, Takako Mitsudo, Yoko Kamio, Shozo Tobimatsu

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3 Citations (Scopus)

Abstract

To better understand how voice and linguistic processing systems develop during the preschool years, changes in cerebral oxygenation were measured bilaterally from temporal areas using multi-channel near-infrared spectroscopy (NIRS). NIRS was recorded while children listened to their mothers' voice (MV), an unfamiliar female voice (UV) and environmental sound (ES) stimuli. Twenty typical children (aged 3-6. years) were divided into younger (Y) (. n=. 10, male. =. 5; aged 3-4.5. years) and older (O) (. n=. 10, male. =. 5; aged 4.5-6. years) groups. In the Y group, while MV stimuli significantly activated anterior temporal areas with a right predominance compared to ES stimuli, they significantly activated left mid-temporal areas compared to UV stimuli. These temporal activations were significantly higher in the Y group compared to the O group. Furthermore, only the O group exhibited significant habituation and gender differences in the left mid-temporal area during MV perception. These findings suggest that the right voice-related and the left language-related temporal areas already exist in the Y group, and that MV stimuli modulate these areas differently in the two age groups. Therefore, we conclude that a mother's voice plays an important role in the maturation of the voice and linguistic processing systems, particularly during the first half of the preschool-aged period. This role may decrease during the latter half of the preschool-aged period due to rapid development of these systems as children age.

Original languageEnglish
Pages (from-to)313-320
Number of pages8
JournalExperimental Neurology
Volume250
DOIs
Publication statusPublished - Dec 1 2013

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Preschool Children
Linguistics
Mothers
Near-Infrared Spectroscopy
Language
Age Groups

All Science Journal Classification (ASJC) codes

  • Neurology
  • Developmental Neuroscience

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Rapid maturation of voice and linguistic processing systems in preschool children : A near-infrared spectroscopic study. / Yamasaki, Takao; Ogata, Katsuya; Maekawa, Toshihiko; Ijichi, Ikue; Katagiri, Masatoshi; Mitsudo, Takako; Kamio, Yoko; Tobimatsu, Shozo.

In: Experimental Neurology, Vol. 250, 01.12.2013, p. 313-320.

Research output: Contribution to journalArticle

Yamasaki, Takao ; Ogata, Katsuya ; Maekawa, Toshihiko ; Ijichi, Ikue ; Katagiri, Masatoshi ; Mitsudo, Takako ; Kamio, Yoko ; Tobimatsu, Shozo. / Rapid maturation of voice and linguistic processing systems in preschool children : A near-infrared spectroscopic study. In: Experimental Neurology. 2013 ; Vol. 250. pp. 313-320.
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