Time-frequency representations and topographies in the perception (A) and no perception (B) conditions– Experiment 2.

<p>A: group average responses to Mooney dynamic stimuli locked to response onset (blue line), baseline corrected and normalized for the baseline interval (fixation and stimulus); B: group average activity for the non- perceived trials. Topography plots for high and low gamma response are shown for perception and no perception conditions respectively. The topographies are averaged across the time window (−800 – 0 ms) for the higher gamma-band (60–75 Hz) and lower gamma-band (30–45 Hz; top right and bottom right, respectively). The gamma-band signal is expressed as relative power change during perception compared to baseline, averaged across all channels. Note that the frequency band where the effect size is highest is the higher gamma-band. Boxes highlight low (30–45 Hz) and high (60–75 Hz) gamma bands, here and in subsequent figures.