Fig. 7 | Nature Communications

Fig. 7

From: The mediodorsal pulvinar coordinates the macaque fronto-parietal network during rhythmic spatial attention

Fig. 7

Spike–LFP phase coupling between mdPul and LIP as a function of theta phase. a Spike–LFP phase coupling (from 9 to 60 Hz) was calculated in overlapping theta-phase bins (on left), using step sizes of 10°. The resulting functions were then fit with one-cycle sine waves. The amplitude of these sine waves provided a measure of how strongly spike–LFP phase coupling was modulated by the phase of theta rhythms (on right, see Fig. 2A for depiction of a similar approach). The black dots represent statistically significant results after corrections for multiple comparisons. b To control for potentially spurious results from theta-dependent changes in alpha/low-beta power (i.e., PAC; see Supplementary Figure 3), a stratification procedure was used to equate trials numbers and alpha/low-beta power between two theta-phase bins, centered on either 90° or 270° (outlined in plots on far left). Because this stratification process involves downsampling trials and therefore different results on each run, it was re-run 1500 times. The above plots (b) represent the means and standard deviations (shaded regions around the lines) of those power-equating iterations

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