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DSL and MUSIC under model misspecification and noise-conditions.

作者信息

Zhang Z, Jewett D L

机构信息

Abratech Corporation, Research Division, Sausalito, California 94965.

出版信息

Brain Topogr. 1994 Winter;7(2):151-61. doi: 10.1007/BF01186773.

DOI:10.1007/BF01186773
PMID:7696092
Abstract

The concepts of both the traditional DSL (Dipole Source Localization) and MUSIC (MUltiple SIgnal Classification) are explained using simple vectors. DSL and MUSIC differ in the way the weighting functions are found. In both DSL and MUSIC, the fitted generator magnitudes are found by projecting the recorded potential map onto the fitted weighting functions, and the model transfers the weighting functions into generator locations/orientations. Both DSL and MUSIC will cause errors in the fitted dipole parameters when there is model misspecification, noise, or both. Therefore, an accurate head model is essential for either method to give reliable results.

摘要

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本文引用的文献

1
Insidious errors in dipole parameters due to shell model misspecification using multiple time-points.由于使用多个时间点时壳模型指定错误而导致的偶极子参数中的潜在误差。
Brain Topogr. 1994 Summer;6(4):283-98. doi: 10.1007/BF01211174.
2
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Brain Topogr. 1994 Fall;7(1):29-39. doi: 10.1007/BF01184835.
3
Insidious errors in dipole localization parameters at a single time-point due to model misspecification of number of shells.由于壳层数模型设定错误，在单个时间点偶极子定位参数中存在潜在错误。
Electroencephalogr Clin Neurophysiol. 1993 Jan-Feb;88(1):1-11. doi: 10.1016/0168-5597(93)90022-h.
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Intracerebral and scalp fields evoked by hemiretinal checkerboard reversal, and modeling of their dipole generators.
Adv Neurol. 1982;32:41-8.
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A comparison of moving dipole inverse solutions using EEG's and MEG's.
IEEE Trans Biomed Eng. 1985 Nov;32(11):905-10. doi: 10.1109/TBME.1985.325622.
6
Two bilateral sources of the late AEP as identified by a spatio-temporal dipole model.通过时空偶极子模型确定的晚期听觉诱发电位的两个双侧来源。
Electroencephalogr Clin Neurophysiol. 1985 Jan;62(1):32-44. doi: 10.1016/0168-5597(85)90033-4.
7
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8
A new interpretation of the generators of BAEP waves I-V: results of a spatio-temporal dipole model.脑干听觉诱发电位I-V波发生器的新解释：时空偶极子模型的结果
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