The correction of eye blink artefacts in the EEG: a comparison of two prominent methods.
The correction of eye blink artefacts in the EEG: a comparison of two prominent methods.
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DOI：
10.1371/journal.pone.0003004
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发表时间：
2008-08-20
期刊：
影响因子：
3.7
通讯作者：
Falkenstein M
中科院分区：
文献类型：
--
作者：
Hoffmann S;Falkenstein M
该研究调查了不同的校正程序，即回归方法（眼动校正程序，EMCP）和基于分量的方法（独立分量分析，伊卡）应用后，眨眼对脑电图（EEG）的剩余影响。研究了真实的和模拟数据中的眨眼相关电位和未校正垂直眼电图（EOG）和校正EEG的剩余互信息，这是剩余EOG对EEG贡献的度量。结果显示，枕叶阳性在应用任一校正程序后的最大眨眼偏移后约250 ms处达到峰值。在模拟数据中未观察到这种阳性。垂直EOG和EEG的互信息依赖于所应用的回归程序。此外，对真实的数据和模拟数据进行了不同的校正。伊卡产生了几乎完美的纠正在所有条件下。然而，在某些条件下，EMCP产生了类似的结果伊卡的方法。总之，对于EMCP，校正的质量取决于所使用的EMCP变体和数据的结构，而伊卡总是产生几乎完美的校正。然而，它的缺点是数据处理复杂得多，并且它需要适量的数据。
The study investigated the residual impact of eyeblinks on the electroencephalogram (EEG) after application of different correction procedures, namely a regression method (eye movement correction procedure, EMCP) and a component based method (Independent Component Analysis, ICA). Real and simulated data were investigated with respect to blink-related potentials and the residual mutual information of uncorrected vertical electrooculogram (EOG) and corrected EEG, which is a measure of residual EOG contribution to the EEG. The results reveal an occipital positivity that peaks at about 250ms after the maximum blink excursion following application of either correction procedure. This positivity was not observable in the simulated data. Mutual information of vertical EOG and EEG depended on the applied regression procedure. In addition, different correction results were obtained for real and simulated data. ICA yielded almost perfect correction in all conditions. However, under certain conditions EMCP yielded comparable results to the ICA approach. In conclusion, for EMCP the quality of correction depended on the EMCP variant used and the structure of the data, whereas ICA always yielded almost perfect correction. However, its disadvantage is the much more complex data processing, and that it requires a suitable amount of data.
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影响因子：
2.4
作者：
Iriarte, J;Urrestarazu, E;Artieda, J
通讯作者：
Artieda, J
影响因子：
3.7
作者：
Croft, RJ;Chandler, JS;Clarke, AR
通讯作者：
Clarke, AR
影响因子：
3.7
作者：
Joyce, CA;Gorodnitsky, IF;Kutas, M
通讯作者：
Kutas, M
影响因子：
20.6
作者：
Jung, TP;Makeig, S;Sejnowski, TJ
通讯作者：
Sejnowski, TJ
DOI：
10.1016/0013-4694(94)90113-9
发表时间：
1994-01-01
期刊：
ELECTROENCEPHALOGRAPHY AND CLINICAL NEUROPHYSIOLOGY
影响因子：
--
作者：
BERG, P;SCHERG, M
通讯作者：
SCHERG, M