Figure 5
From: Neural oscillations promoting perceptual stability and perceptual memory during bistable perception
Alpha and beta amplitudes correlate with the persistence of perceptual memory. (A) The persistence of perceptual memory was assessed by the number of consecutive stable blank periods. The plot shows an example EEG recording over 20 s of an intermittent-viewing trial (black curve is signal filtered in the alpha band and red curve is its amplitude envelope) with its corresponding sets of consecutive stable blank periods. Stable blank periods are shaded in orange and reversal blank periods shaded in cyan. (B) Scatter plot shows all sets of consecutive stable blank periods and corresponding alpha amplitudes from channel Oz, for the cube trials from a single subject. (C) Spearman correlation was performed on each channel for each subject between the number of consecutive stable blanks and band-limited amplitude during the corresponding blank periods. Topo-plots show group-averaged Spearman rho values. Black dots indicate channels with significant Spearman correlation (cluster-based permutation test using Fisher-z-transformed rho values, N = 23, p < 0.05, two-tailed). Only data for cube trials are shown here (see Fig. S6 for face-vase trials).
