The physiological plausibility of time-varying Granger-causal modeling: Normalization and weighting by spectral power

@article{Plomp2014ThePP,
  title={The physiological plausibility of time-varying Granger-causal modeling: Normalization and weighting by spectral power},
  author={Gijs Plomp and Charles Quairiaux and Christoph M. Michel and Laura Astolfi},
  journal={NeuroImage},
  year={2014},
  volume={97},
  pages={206-16}
}
Time-varying connectivity methods are increasingly used to study directed interactions between brain regions from electrophysiological signals. These methods often show good results in simulated data but it is unclear to what extent connectivity results obtained from real data are physiologically plausible. Here we introduce a benchmark approach using multichannel somatosensory evoked potentials (SEPs) measured across rat cortex, where the structural and functional connectivity is relatively… CONTINUE READING
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