Fig. 4: Relationship of Beta and Gamma with behavioral performance over time.

Evolution of Pearson’s correlation coefficient (R) between mean SD signals and behavioral performance across the trial. The timeline is aligned to: pair presentation (Pair ON), Go onset (GO), Movement onset (Mov ON), and target touch (Touch). The mean SD signal values were computed every 50 ms using a 100 ms sliding window while the performance remained constant over time. The black lines at the bottom of the graph show statistically significant correlations (permutation test, with significance p < 0.05).