| 真实头模型中的源电位计算方法与效果 |
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| 引用本文： | 蔡永春,尧德中.真实头模型中的源电位计算方法与效果[J].电子科技大学学报(社会科学版),2003(2). |
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| 作者姓名： | 蔡永春 尧德中 |
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| 作者单位： | 电子科技大学生命科学与技术学院 成都610054
(蔡永春)，电子科技大学生命科学与技术学院 成都610054(尧德中) |
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| 基金项目： | 国家自然科学基金资助项目，编号:90208003，30200059，教育部科技重点项目，博士点基金，高校青年教师奖，优秀青年教师基金资助项目 |
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| 摘 要： | 建立了真实头模型中脑电正问题的边界元计算方法,应用消涨技术与隔离技术降低计算误差,保证了脑电正问题的计算精度。在此基础上,实现了真实头模型中的源电位和皮层电位的计算,计算结果表明,源电位是一种比皮层电位更好的成像物理量。
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| 关 键 词： | 脑电 皮层电位 源电位 边界元法 |
A Method to Calculate Source Potential in Realistic Head Model and Its Effectiveness |
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| Cai Yongchun,Yao Dezhong.A Method to Calculate Source Potential in Realistic Head Model and Its Effectiveness[J].Journal of University of Electronic Science and Technology of China(Social Sciences Edition),2003(2). |
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| Authors: | Cai Yongchun Yao Dezhong |
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| Abstract: | In this work, a boundary element method was developed for the forward calculation of the source potential in a realistic head model. A high calculation precision is arrived through the use of the deflation technique and isolated problem approach. Based on the developed method, both source potential and the canonical cortical surface potential are calculated and compared, and the result indicates that the source potential is a better imaging modality than the cortical surface potential. |
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| Keywords: | electroencephalogram cortical surface potential source potential boundary element method |
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