Advanced

Near-infrared spectroscopic imaging of stimulus-related hemodynamic responses on the neonatal auditory cortices.

Kotilahti, K; Nissilä, I; Mäkelä, R; Noponen, T; Lipiäinen, L; Gavrielides, N; Kajava, T; Huotilainen, M; Fellman, Vineta LU and Meriläinen, P, et al. (2005) Optical tomography and spectroscopy of tissue VI, 2005 In Optical tomography and spectroscopy of tissue VI 5693. p.388-395
Abstract
We have used near-infrared spectroscopy (NIRS) to study hemodynamic auditory evoked responses on 7 full-term neonates. Measurements were done simultaneously above both auditory cortices to study the distribution of speech and music processing between hemispheres using a 16-channel frequency-domain instrument. The stimulation consisted of 5-second samples of music and speech with a 25-second silent interval. In response to stimulation, a significant increase in the concentration of oxygenated hemoglobin ([HbO2]) was detected in 6 out of 7 subjects. The strongest responses in [HbO2] were seen near the measurement location above the ear on both hemispheres. The mean latency of the maximum responses was 9.42±1.51 s. On the left hemisphere... (More)
We have used near-infrared spectroscopy (NIRS) to study hemodynamic auditory evoked responses on 7 full-term neonates. Measurements were done simultaneously above both auditory cortices to study the distribution of speech and music processing between hemispheres using a 16-channel frequency-domain instrument. The stimulation consisted of 5-second samples of music and speech with a 25-second silent interval. In response to stimulation, a significant increase in the concentration of oxygenated hemoglobin ([HbO2]) was detected in 6 out of 7 subjects. The strongest responses in [HbO2] were seen near the measurement location above the ear on both hemispheres. The mean latency of the maximum responses was 9.42±1.51 s. On the left hemisphere (LH), the maximum amplitude of the average [HbO2] response to the music stimuli was 0.76± 0.38 μ M (mean±std.) and to the speech stimuli 1.00± 0.45 μ± μM. On the right hemisphere (RH), the maximum amplitude of the average [HbO2] response was 1.29± 0.85 μM to the music stimuli and 1.23± 0.93 μM to the speech stimuli. The results indicate that auditory information is processed on both auditory cortices, but LH is more concentrated to process speech than music information. No significant differences in the locations and the latencies of the maximum responses relative to the stimulus type were found. (Less)
Please use this url to cite or link to this publication:
author
, et al. (More)
(Less)
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
in
Optical tomography and spectroscopy of tissue VI
volume
5693
pages
8 pages
publisher
SPIE
conference name
Optical tomography and spectroscopy of tissue VI, 2005
external identifiers
  • scopus:23244460188
ISSN
0277-786X
1996-756X
ISBN
9780819456670
DOI
10.1117/12.590180
language
English
LU publication?
yes
id
73b01d6c-93ab-4bf2-828b-fbca4eb21d32 (old id 1133412)
date added to LUP
2008-06-24 14:44:35
date last changed
2017-11-20 15:05:56
@inproceedings{73b01d6c-93ab-4bf2-828b-fbca4eb21d32,
  abstract     = {We have used near-infrared spectroscopy (NIRS) to study hemodynamic auditory evoked responses on 7 full-term neonates. Measurements were done simultaneously above both auditory cortices to study the distribution of speech and music processing between hemispheres using a 16-channel frequency-domain instrument. The stimulation consisted of 5-second samples of music and speech with a 25-second silent interval. In response to stimulation, a significant increase in the concentration of oxygenated hemoglobin ([HbO2]) was detected in 6 out of 7 subjects. The strongest responses in [HbO2] were seen near the measurement location above the ear on both hemispheres. The mean latency of the maximum responses was 9.42±1.51 s. On the left hemisphere (LH), the maximum amplitude of the average [HbO2] response to the music stimuli was 0.76± 0.38 μ M (mean±std.) and to the speech stimuli 1.00± 0.45 μ± μM. On the right hemisphere (RH), the maximum amplitude of the average [HbO2] response was 1.29± 0.85 μM to the music stimuli and 1.23± 0.93 μM to the speech stimuli. The results indicate that auditory information is processed on both auditory cortices, but LH is more concentrated to process speech than music information. No significant differences in the locations and the latencies of the maximum responses relative to the stimulus type were found.},
  author       = {Kotilahti, K and Nissilä, I and Mäkelä, R and Noponen, T and Lipiäinen, L and Gavrielides, N and Kajava, T and Huotilainen, M and Fellman, Vineta and Meriläinen, P and Katila, T},
  booktitle    = {Optical tomography and spectroscopy of tissue VI},
  isbn         = {9780819456670},
  issn         = {0277-786X},
  language     = {eng},
  pages        = {388--395},
  publisher    = {SPIE},
  title        = {Near-infrared spectroscopic imaging of stimulus-related hemodynamic responses on the neonatal auditory cortices.},
  url          = {http://dx.doi.org/10.1117/12.590180},
  volume       = {5693},
  year         = {2005},
}