Phase lag index: assessment of functional connectivity from multi channel EEG and MEG with diminished bias from common sources.

@article{Stam2007PhaseLI,
  title={Phase lag index: assessment of functional connectivity from multi channel EEG and MEG with diminished bias from common sources.},
  author={Cornelis J. Stam and G. Nolte and Andreas Daffertshofer},
  journal={Human brain mapping},
  year={2007},
  volume={28 11},
  pages={1178-93}
}
OBJECTIVE To address the problem of volume conduction and active reference electrodes in the assessment of functional connectivity, we propose a novel measure to quantify phase synchronization, the phase lag index (PLI), and compare its performance to the well-known phase coherence (PC), and to the imaginary component of coherency (IC). METHODS The PLI is a measure of the asymmetry of the distribution of phase differences between two signals. The performance of PLI, PC, and IC was examined in… CONTINUE READING
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