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. Author manuscript; available in PMC: 2021 Apr 7.
Published in final edited form as: Nature. 2020 Oct 7;587(7834):432–436. doi: 10.1038/s41586-020-2802-y

Extended Data 3. Wideband Generalized Phase is better coupled to spike timing than narrowband alpha or theta filters.

Extended Data 3.

(a) The phase and amplitude of the raw (5–100 Hz) LFP is poorly captured by narrow-band theta (4–8 Hz, blue dotted line) or alpha (8–13 Hz, red dotted line) filters. (b) Scatter plot showing spontaneous spike-phase coupling is greater for GP (5–40 Hz) than alpha or theta narrowband filtered phases. Coupling averaged across electrodes for individual recording sessions is plotted as black dots and each red dot represents the average value across sessions. (c) Spontaneous spike-phase coupling remains stronger for GP than the narrow frequency bands even when the spontaneous LFP epochs are restricted to periods where there is large alpha (12.06% of recorded time) or theta (7.24%) LFP power during fixation (5 dB SNR, narrow- to broad-band power ratio). Results are presented from monkey W.