作者
Adre du Plessis R.B. Govindan , Srinivas Kota, Tareq Al-Shargabi, An N Massaro, Taeun Chang
发表日期
2016/9
期刊
Journal of Neuroscience Methods
卷号
270
页码范围
76-84
出版商
Science Direct
简介
Background
Electroencephalogram (EEG) signals are often contaminated by the electrocardiogram (ECG) interference, which affects quantitative characterization of EEG.
New method
We propose null-coherence, a frequency-based approach, to attenuate the ECG interference in EEG using simultaneously recorded ECG as a reference signal. After validating the proposed approach using numerically simulated data, we apply this approach to EEG recorded from six newborns receiving therapeutic hypothermia for neonatal encephalopathy. We compare our approach with an independent component analysis (ICA), a previously proposed approach to attenuate ECG artifacts in the EEG signal. The power spectrum and the cortico-cortical connectivity of the ECG attenuated EEG was compared against the power spectrum and the cortico-cortical connectivity of the raw EEG.
Results
The null-coherence approach attenuated …
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RB Govindan, S Kota, T Al-Shargabi, AN Massaro… - Journal of neuroscience methods, 2016