Removal of time-varying gradient artifacts from EEG data acquired during continuous fMRI

@article{Negishi2004RemovalOT,
  title={Removal of time-varying gradient artifacts from EEG data acquired during continuous fMRI},
  author={Michiro Negishi and Mark Abildgaard and Terry D. Nixon and Robert Todd Constable},
  journal={Clinical Neurophysiology},
  year={2004},
  volume={115},
  pages={2181-2192}
}
OBJECTIVE Recording low amplitude electroencephalography (EEG) signals in the face of large gradient artifacts generated by changing functional magnetic resonance imaging (fMRI) magnetic fields continues to be a challenge. We present a new method of removing gradient artifacts with time-varying waveforms, and evaluate it in continuous (non-interleaved) simultaneous EEG-fMRI experiments. METHODS The current method consists of an analog filter, an EEG-fMRI timing error correction algorithm, and… CONTINUE READING
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