Figure 1

<p>a,b) The left and right eye stimuli, respectively. c) Schematic representation of the stream of perceptual consciousness wherein discrete moments of perceptual experience coincide with gamma-band synchronization, itself locked to a theta cycle. Periodic gamma-band synchronization is locked to the onset of new conscious percepts and hence to button presses signaling perceptual switching. We imaged these oscillatory cortical networks by comparing gamma synchronization during periodic activations to the intervening period of relative desynchronization. In this figure 0 ms indicates button presses indicating the onset of a new percept. The preceding −600 to −540 ms and −280 to 220 ms analysis windows, as well as the −430 to −370 ms baseline interval, are depicted.