Study on the localization of the electric dipole sources

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	Study on the localization of the electric dipole sources
	Wu Chong-Qing ; Zhao Shuang
刊名	ACTA PHYSICA SINICA
	2007-09-01
卷号	56 期号:9 页码:5180-5184
关键词	electric dipoles transfer matrix electric-field distribuion localization
ISSN号	1000-3290
英文摘要	The research of dipole source localization has great significance in both clinical research and applications. For example, the EEG recording from the scalp is widely used for the localization of sources of electrical activity in the brain. This paper presents a closed formula that describes the electric field of dipoles at arbitrary position, which is a linear transformer called the transfer matrix. The expression of transfer matrix and its many useful characteristics are given, which can be used for the analysis of the electrical fields of dipoles. This paper also presents the closed formula for determining the location and magnitude of single dipole or multi-dipoles according to its electrical field distribution. A calculation result for a single dipole shows that the dipole will be located at the midpoint of a line segment if there are equivalent fields at its two ends.
WOS关键词	BRAIN ; MODELS
WOS研究方向	Physics
语种	英语
出版者	CHINESE PHYSICAL SOC
WOS记录号	WOS:000249165100030
公开日期	2010-10-29
内容类型	期刊论文
源URL	[http://ir.imp.cas.cn/handle/113462/5893]
专题	近代物理研究所_近代物理研究所知识存储（2010之前）
通讯作者	Wu Chong-Qing
作者单位	1.Grad Sch, Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Wu Chong-Qing,Zhao Shuang. Study on the localization of the electric dipole sources[J]. ACTA PHYSICA SINICA,2007,56(9):5180-5184.
APA	Wu Chong-Qing,&Zhao Shuang.(2007).Study on the localization of the electric dipole sources.ACTA PHYSICA SINICA,56(9),5180-5184.
MLA	Wu Chong-Qing,et al."Study on the localization of the electric dipole sources".ACTA PHYSICA SINICA 56.9(2007):5180-5184.