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Comparative power spectral analysis of simultaneous electroencephalographic and magnetoencephalographic recordings in humans suggests non-resistive extracellular media

Nima Dehghani, Claude Bédard, Sydney Cash, Eric Halgren, and Alain Destexhe

Journal of Computational Neuroscience · 2010 DOI · 10.1007/s10827-010-0263-2

Comparative power spectral analysis of simultaneous electroencephalographic and magnetoencephalographic recordings in humans suggests non-resistive extracellular media — teaser figure

Summary

This paper investigates whether the extracellular space in the brain acts as a resistive or non-resistive medium by comparing the frequency scaling of simultaneous EEG and MEG recordings. The study concludes that significant differences in scaling between the two signals suggest the extracellular medium is globally non-resistive, a finding that challenges standard simplified models used in source localization and neural field calculations.

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@Article{Dehghani_MEGEEGspectra_2010,
  author={Dehghani, Nima
  and B{\'e}dard, Claude
  and Cash, Sydney S.
  and Halgren, Eric
  and Destexhe, Alain},
  title={Comparative power spectral analysis of simultaneous elecroencephalographic and magnetoencephalographic recordings in humans suggests non-resistive extracellular media},
  journal={Journal of Computational Neuroscience},
  year={2010},
  month={Dec},
  day={01},
  volume={29},
  number={3},
  pages={405-421},
  issn={1573-6873},
  doi={10.1007/s10827-010-0263-2},
  url={https://doi.org/10.1007/s10827-010-0263-2}
}