Measuring spectrally-resolved information transfer
Fig 11
Spectrally resolved transfer entropy for example 7.
(A) Top, a source S0 is unidirectionally coupled, at multiple scales: j = 3 (frequency band 8-16 Hz), j = 4 (frequency band 4-8 Hz) and j = 5 (frequency band 2-4 Hz), with a target T1 at scale j = 1 (frequency band 31-63 Hz). Bottom, power spectral of S0 and T1. (B) Spectrally resolved Transfer Entropy. See Fig 4 for display conventions. (Left panel) Information transfer, correctly, drops when wavelet coefficients are selectively shuffled at scale 3 (frequency band 8-16 Hz), 4 (frequency band 4-8 Hz), 5 (frequency band 2-4 Hz) on the source site. The corresponding reception of information at the target is shown on the right panel, where a drop for shuffled wavelet coefficients is observed at scale 1 (frequency band 31-63 Hz).