Presentation 2001/3/22
Cerebral Lateralization of Speech Processing in Infants Measured by Near-Infrared Spectroscopy
I. Furuya, K. Mori, Y. Minagawa-Kawai, R. Hayashi,
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Abstract(in English) Near-infrared spectroscopy (NIRS) is a non-invasive method for measuring relative changes in tissue concentration of oxygenated, deoxygenated and total hemoglobin. This method provides a non-invasive functional brain mapping technique because the brain activity is closely coupled with local hemoglobins concentration changes. Cerebral activation of auditory areas for phoneme and pitch contrasts were measured by multi-channel NIRS for 0-5 y.o. infants. The subjects of 1-5 y.o. showed left dominance for phoneme processing relative to pitch processing. This result was comparable to that of right-handed adults [Furuya et al., Neurosci Res S24: S77, 2000]. The subjects of the first year of life did not show significant left dominance.
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Keyword(in English) Near-infrared spectroscopy (NIRS) / Non-invasive functional brain mapping / Phoneme contrast / Pitch contrast / Infants / Auditory cortex
Paper # SP2000-155
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Committee SP
Conference Date 2001/3/22(1days)
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Registration To Speech (SP)
Language JPN
Title (in Japanese) (See Japanese page)
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Title (in English) Cerebral Lateralization of Speech Processing in Infants Measured by Near-Infrared Spectroscopy
Sub Title (in English)
Keyword(1) Near-infrared spectroscopy (NIRS)
Keyword(2) Non-invasive functional brain mapping
Keyword(3) Phoneme contrast
Keyword(4) Pitch contrast
Keyword(5) Infants
Keyword(6) Auditory cortex
1st Author's Name I. Furuya
1st Author's Affiliation Research Institute of National Rehabilitation Center for the Disabled()
2nd Author's Name K. Mori
2nd Author's Affiliation Research Institute of National Rehabilitation Center for the Disabled
3rd Author's Name Y. Minagawa-Kawai
3rd Author's Affiliation Research Institute of National Rehabilitation Center for the Disabled
4th Author's Name R. Hayashi
4th Author's Affiliation Research Institute of National Rehabilitation Center for the Disabled
Date 2001/3/22
Paper # SP2000-155
Volume (vol) vol.100
Number (no) 725
Page pp.pp.-
#Pages 6
Date of Issue