In reading EEGs, one should recognize artifacts which obscure the EEG and may confuse the interpreting physician. Artifacts are signals recorded by EEG but not generated by brain. Some artifact may mimic true epileptiform abnormalities or seizures. Awareness of logical topographic field of distribution...
参考 Akhtar, M. T., Mitsuhashi, W., & James, C. J. (2012). Employing spatially constrained ICA and wavelet denoising, for automatic removal of artifacts from multichannel EEG data. Signal processing, 92(2), 401-416. Bell, A. J., & Sejnowski, T. J. (1995). An information-maximisat...
已知生理因素将伪迹引入EEG的数据记录中。这些包括但不限于: Cardiac signal (Electrocardiogram, ECG or EKG) 心脏信号(心电图、ECG或EKG) Artifacts caused by muscle contraction (Electromyogram, EMG) 肌肉收缩引起的伪影(肌电图,EMG) Ocular signal caused by eyeball movement (Electrooculogram, EOG) 眼球运动...
To avoid the reduction in temporal precision of events that comes with resampling aRawobject, and also avoid the edge artifacts that come with filtering anEpochsorEvokedobject, the best practice is to: low-pass filter theRawdata at or below 1/3 of the desired sample rate, then decimate(抽1...
Wallstrom, G. L., Kass, R. E., Miller, A., Cohn, J. F., & Fox, N. A. (2004). Automatic correction of ocular artifacts in the EEG : a comparison of regression-based and component-based methods. International Journal of Psychophysiology, 53, 105–119. ...
EEG data with artifacts to be filtered, and EEG data in resting state, dimensions N x channels where N is the length of an EEG record Methods _wpt_filter: filters data selecting the most corrupt node in a wpt removes it and makes the reconstruction of the signal, a wpt is computed per...
55. Negishi, M., et al.: Removal of time-varying gradient artifacts from EEG data acquired during continuous fMRI. Clin. Neurophysiol. 115(9), 2181–2192 (2004) 56. Niazy, R.K., et al.: Removal of fMRI environment artifacts from EEG data using optimal basis sets. NeuroImage. 28(3...
摘要: Manual and semi-automatic identification of artifacts and unwanted physiological signals in large intracerebral electroencephalographic (iEEG) recordings is time consuming and inaccurate. To date,...DOI: 10.1007/s12021-018-9397-6 年份: 2018 ...
Jung T-P, Humphries C, Lee TW, Makeig S, McKeown MJ, Iragui V, and Sejnowski TJ, "Removing Electroencephalographic Artifacts : Comparison between ICA and PCA", In:Neural Networks for Signal ProcessingVIII, 63-72, 1998. Jung T-P, Makeig S, Westerfield M, Townsend J, Courchesne E, ...
One of the greatest challenges that hinder the decoding and application of electroencephalography (EEG) is that EEG recordings almost always contain artifacts - non-brain signals. Among existing automatic artifact-removal methods, artifact subspace reconstruction (ASR) is an online and real-time capabl...