Figure 2.

Modulatory effect of prestimulus alpha phase. A, Circular distribution (count presented as percentage; phase in degrees) of the alpha-rhythm phase at the time of stimulation for hits (left) with PLI_hits = 0.19 (null hypothesis about uniform phase distribution was rejected in Rayleigh test, p = 0.048) and misses (right) with PLI_hits = 0.10 (null hypothesis could not be rejected, p = 0.216). B, Spiking response to stimulation at different alpha phases, a relative change in the number of spikes elicited within the poststimulus interval of one alpha cycle with respect to the average number over all alpha phase bins (12 bins of the size of 30 degrees).