Figure 4
From: The brain tracks auditory rhythm predictability independent of selective attention
Illustration of results from analysis of hemispheric differences. (a) ERP time-courses for attended (blue) and unattended (red) tones. (b) ERP time-courses to tones occurring in high predictability- (blue) and low predictability (red) blocks. (a,b) Left panels represent the average of left hemisphere electrodes (F3, FC3, C3), and right panels represent the average of right hemisphere electrodes (F4, FC4, C4), highlighted in the head plots with red markers. Top-panels represent left ear tones, and bottom panels right ear tones. The shaded area around ERP time courses represents the standard error of the mean. The time-window used for analyzing the mean N1 amplitude (82–107 ms) is shaded in grey. An additional 30 Hz low-pass filter was applied for visualization purposes. (c) Plots of the interaction between hemisphere (LH = left hemisphere, RH = right hemisphere) and the three factors; stimulated ear (top, RE = right ear, LE = left ear), attention (middle, U = unattended, A = attended), and predictability (bottom, L = low pred., H = high pred.). Mean N1 amplitude is plotted for each condition. Error bars represent the standard error of the mean, *p < 0.05, **p < 0.01, n.s = not significant.
