Fig. 3.

Statistical comparison of oscillatory information flow obtained with the isolated effective coherence (iCoh) measure: arithmetic task minus resting state. Red arrows correspond to task-related connectivity increase (equivalent to a resting state connectivity decrease), and blue arrows correspond to task-related connectivity decrease (equivalent to a resting state connectivity increase). All displayed arrows are significant at p < .05, with correction for multiple testing by means of non-parametric randomization of the exceedance proportion test. a) Theta band. b) Alpha1 band. c) Alpha2 band. (For interpretation of the references to color in this figure legend, the reader is referred to the web version of this article.)