The nonlinearity investigation between stimulation duration and HRFs in primary visual cortex

碩士 === 國立臺灣大學 === 電機工程學研究所 === 97 === Hemodynamic responses to visual stimulation were assessed for nonlinearity in short stimulation duration. Four stimulation durations were used (1, 2, 4, and 8 sec), and 9 subjects were scanned to verify the nonlinear BOLD responses in visual cortex. The test o...

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Main Authors: Ju-Yin Chang, 張如因
Other Authors: Hsiao-Wen Chung
Format: Others
Language:en_US
Published: 2008
Online Access:http://ndltd.ncl.edu.tw/handle/82436820778079466796
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spelling ndltd-TW-097NTU054420142016-05-09T04:14:03Z http://ndltd.ncl.edu.tw/handle/82436820778079466796 The nonlinearity investigation between stimulation duration and HRFs in primary visual cortex 探討視覺區血氧訊號變化的非線性程度 Ju-Yin Chang 張如因 碩士 國立臺灣大學 電機工程學研究所 97 Hemodynamic responses to visual stimulation were assessed for nonlinearity in short stimulation duration. Four stimulation durations were used (1, 2, 4, and 8 sec), and 9 subjects were scanned to verify the nonlinear BOLD responses in visual cortex. The test of nonlinearity consisted of using BOLD responses due to short stimulation durations to predict responses due to long stimulation durations. The results show the hemodynamic response is nonlinear for stimulation duration less than 4 sec in the visual cortex. In addition, the shape of hemodynamic response function influenced by the choice of region-of-interest was discussed. Hsiao-Wen Chung 鍾孝文 2008 學位論文 ; thesis 48 en_US
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description 碩士 === 國立臺灣大學 === 電機工程學研究所 === 97 === Hemodynamic responses to visual stimulation were assessed for nonlinearity in short stimulation duration. Four stimulation durations were used (1, 2, 4, and 8 sec), and 9 subjects were scanned to verify the nonlinear BOLD responses in visual cortex. The test of nonlinearity consisted of using BOLD responses due to short stimulation durations to predict responses due to long stimulation durations. The results show the hemodynamic response is nonlinear for stimulation duration less than 4 sec in the visual cortex. In addition, the shape of hemodynamic response function influenced by the choice of region-of-interest was discussed.
author2 Hsiao-Wen Chung
author_facet Hsiao-Wen Chung
Ju-Yin Chang
張如因
author Ju-Yin Chang
張如因
spellingShingle Ju-Yin Chang
張如因
The nonlinearity investigation between stimulation duration and HRFs in primary visual cortex
author_sort Ju-Yin Chang
title The nonlinearity investigation between stimulation duration and HRFs in primary visual cortex
title_short The nonlinearity investigation between stimulation duration and HRFs in primary visual cortex
title_full The nonlinearity investigation between stimulation duration and HRFs in primary visual cortex
title_fullStr The nonlinearity investigation between stimulation duration and HRFs in primary visual cortex
title_full_unstemmed The nonlinearity investigation between stimulation duration and HRFs in primary visual cortex
title_sort nonlinearity investigation between stimulation duration and hrfs in primary visual cortex
publishDate 2008
url http://ndltd.ncl.edu.tw/handle/82436820778079466796
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