Figure 3
From: The brain tracks auditory rhythm predictability independent of selective attention

Illustration of results from the N1 analysis at midline electrodes. (a) Grand average ERPs at the midline electrodes (Fz, FCz, Cz) for attended (left panel) and unattended (right panel) tones. The high- and low-predictability conditions are illustrated by the blue and red lines, respectively. The shaded area around the lines 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. (b) Topographical representation of the N1 component (82–107 ms) across all task conditions. The three midline electrodes are highlighted (black dots). (c) Mean N1 amplitude (82–107 ms) for tones across the midline electrodes (Fz, FCz, and Cz). Plot of the attention effect (top), and the predictability effect (bottom), *p < 0.05, **p < 0.01. Error bars represent the standard error of the mean, and individual data points are plotted (grey dots).