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Near-infrared spect...
Near-infrared spectroscopic imaging of stimulus-related hemodynamic responses on the neonatal auditory cortices.
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Kotilahti, K (författare)
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Nissilä, I (författare)
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Mäkelä, R (författare)
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Noponen, T (författare)
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Lipiäinen, L (författare)
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Gavrielides, N (författare)
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Kajava, T (författare)
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Huotilainen, M (författare)
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- Fellman, Vineta (författare)
- Lund University,Lunds universitet,Pediatrik, Lund,Sektion V,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Paediatrics (Lund),Section V,Department of Clinical Sciences, Lund,Faculty of Medicine
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Meriläinen, P (författare)
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Katila, T (författare)
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(creator_code:org_t)
- SPIE, 2005
- 2005
- Engelska 8 s.
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Ingår i: Optical tomography and spectroscopy of tissue VI. - : SPIE. - 1996-756X .- 0277-786X. - 9780819456670 ; 5693, s. 388-395
- Relaterad länk:
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http://dx.doi.org/10...
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https://lup.lub.lu.s...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- 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.
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Pediatrik (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Pediatrics (hsv//eng)
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Till lärosätets databas
- Av författaren/redakt...
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Kotilahti, K
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Nissilä, I
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Mäkelä, R
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Noponen, T
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Lipiäinen, L
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Gavrielides, N
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visa fler...
-
Kajava, T
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Huotilainen, M
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Fellman, Vineta
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Meriläinen, P
-
Katila, T
-
visa färre...
- Om ämnet
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- MEDICIN OCH HÄLSOVETENSKAP
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MEDICIN OCH HÄLS ...
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och Klinisk medicin
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och Pediatrik
- Artiklar i publikationen
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Optical tomograp ...
- Av lärosätet
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Lunds universitet