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

Research output: Contribution to journalArticle

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

All Science Journal Classification (ASJC) codes

  • Neurology
  • Developmental Neuroscience

Fingerprint Dive into the research topics of 'Rapid maturation of voice and linguistic processing systems in preschool children: A near-infrared spectroscopic study'. Together they form a unique fingerprint.

  • Cite this

    Yamasaki, T., Ogata, K., Maekawa, T., Ijichi, I., Katagiri, M., Mitsudo, T., Kamio, Y., & Tobimatsu, S. (2013). Rapid maturation of voice and linguistic processing systems in preschool children: A near-infrared spectroscopic study. Experimental Neurology, 250, 313-320. https://doi.org/10.1016/j.expneurol.2013.10.005