Measuring spectrally-resolved information transfer
Fig 12
Spectrally resolved transfer entropy for example 8.
(A) Top, a source S0 is unidirectionally coupled, at scales j = 5 (frequency band 4-8 Hz), with a target T1 at multiple scales: j = 1 (frequency band 63-125 Hz), j = 2 (frequency band 31-63 Hz) and j = 3 (frequency band 16-31 Hz). Bottom, power spectrum of S0 and T1. (B) Spectrally resolved Transfer Entropy. See Fig 4 for display conventions. (Left panel) Information transfer, drops when wavelet coefficients are selectively shuffled at scale 5 (frequency band 4-8 Hz) and 6 (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 63-125 Hz), scale 2 (frequency band 31-63 Hz) and scale 3 (frequency band 16-31 Hz).