These are from all electrodes (arrayed on the y axis from frontal, F, at the top to occipital, O, at the bottom) as a function of time (on the x axis). Middle panel: t values for the difference in the voltage between trials when consciousness changed at the second display with those when it did not change. Top panel: schematic representation of the stimuli as a function of time. There are also differences in the second display presumably arising from response preparation.įigure S2: Version of Figure 1b showing an additional 800 ms of the second display of fused stimuli. The lower ERPs, for central electrodes, show that the predictive activity is only in the positivity in the first display, between 300 ms and 800 ms, maximal at 400 ms. There is also a large difference between the two traces between about 300 ms and 800 ms after onset of the second display, with greater negativity when consciousness had changed after the gap. They also show a prolonged positivity from 300 ms to 800 ms that is less when consciousness changed after the gap than when not. The upper ERPs, for parieto-occipital and occipital electrodes, show that the first predictive activity, in the first display of rival stimuli, was in the first main, negative deflection (the N1). Lower panels: Average voltages, ERPs, from clusters of six parieto-occipital and occipital (OP) electrodes (see upper schematic head), and from six central electrodes (see lower schematic head), red for when consciousness changed and green for when it stayed the same. It is more negative when consciousness changed after the gap. There is also other activity about 450 ms after the onset of the second display. About 400 ms after the onset of the first display of stimuli, there is other, widespread predictive activity. When the change in consciousness was from rivalry (a), there was a cluster of electrodes showing predictive activity 180 ms after the onset of the stimuli. ![]() Figure S1: Version of Figure 1a showing an additional 800 ms of the second display of rival stimuli and a second set of ERPs from a cluster of six central electrodes.
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