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Effect of wider transition bands at higher frequencies when computing CFC. Modulation Index values (y axis) for 75 Hz phase-amplitude coupled signals modulated at 6, 10, or 16 Hz over varying levels of SNR (x axis). A band pass filter with pass-band edge frequencies of 73 and 77 Hz was used, and each data point is the average of 100 simulations. Significance level is p<0.05.
