Fig. 2.

Task-related differences in nested oscillation. Maps of t-values for two-sample t-tests comparing PAC measures from ECoG data between target and non-target trials for ESC (top left), GLM (top right), PLV (bottom left) and modulation index (bottom right). In each image electrodes are numbered from bottom right (number 1) to top left (number 64). Electrodes marked with filled circles show significant differences between trial types. Both ESC and GLM indicate significant PAC differences at electrodes 63 and 45, and PLV at electrode 63. No significant differences were revealed by the modulation index. (For interpretation of the references to color in the artwork, the reader is referred to the web version of the article.)