Presentation | 2006/10/19 Hemodynamic responses corresponding to the stimulated visual field : measurements with 24 channel NIRS Shuichiro TAYA, Goro MAEHARA, Haruyuki KOJIMA, |
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Abstract(in Japanese) | (See Japanese page) |
Abstract(in English) | We measured the hemodynamic responses in the occipital regions during visual stimulation with near-infrared spectroscopy (NIRS). The stimulus was a radial checker pattern (12 deg in radius) of which contrast reversed at 7.5Hz, and was presented to the whole or one quadrant of the visual field. In each measurement session, a 15s stimulating period and a 30s resting period were repeated five times. Hemodynamic changes at the occipital regions were measured with 4×4 probes which were separated from each other by 3cm. The results of the two-session measurements for each visual field showed that oxy-hemoglobin (Hb) concentration increased whereas deoxy-Hb concentration decreased during the stimulating period. Those changes in the Hbs were corresponding to the stimulated visual field, but only when the lower quadrants were stimulated. |
Keyword(in Japanese) | (See Japanese page) |
Keyword(in English) | near-infrared spectroscopy / NIRS / hemodynamic responses / visual area / retinotopy |
Paper # | HIP2006-53 |
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Conference Information | |
Committee | HIP |
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Conference Date | 2006/10/19(1days) |
Place (in Japanese) | (See Japanese page) |
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Registration To | Human Information Processing (HIP) |
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Language | JPN |
Title (in Japanese) | (See Japanese page) |
Sub Title (in Japanese) | (See Japanese page) |
Title (in English) | Hemodynamic responses corresponding to the stimulated visual field : measurements with 24 channel NIRS |
Sub Title (in English) | |
Keyword(1) | near-infrared spectroscopy |
Keyword(2) | NIRS |
Keyword(3) | hemodynamic responses |
Keyword(4) | visual area |
Keyword(5) | retinotopy |
1st Author's Name | Shuichiro TAYA |
1st Author's Affiliation | Graduate school of human and socio-environment studies, Kanazawa University() |
2nd Author's Name | Goro MAEHARA |
2nd Author's Affiliation | Graduate school of human and socio-environment studies, Kanazawa University |
3rd Author's Name | Haruyuki KOJIMA |
3rd Author's Affiliation | Faculty of letters, Kanazawa University |
Date | 2006/10/19 |
Paper # | HIP2006-53 |
Volume (vol) | vol.106 |
Number (no) | 328 |
Page | pp.pp.- |
#Pages | 4 |
Date of Issue |