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. 2013 Nov 27;7:777. doi: 10.3389/fnhum.2013.00777

Figure 3.

Figure 3

Phase distributions at stimulus onset at representative frontal, central, and occipital electrodes in each condition, frequency band, and group. The x-axis is phase ranging from −π to π and y-axis represents the percentage of trials. Most distributions differed from uniformity when tested against the Rayleigh statistic at a critical p-value of 0.001. Distributions with a superimposed X did not result in significant entrainment.