analysis in the pressing task revealed only a main effect of Period [F(4,148) = 13.18, P < 0.001], while a significant interaction of group and period [F(4,148) = 3.98, P = 0.004] was revealed in the slow tapping task. This finding raises the question of whether the transient modulation of β power primarily drove PAC modulation during movement. However, we did not find any significant correlation between the absolute PAC and β power values in any of the periods in either the pressing or the slow tapping task (P values > 0.3). Two examples of scatter plots between absolute power and PAC in P1 (T1) of pressing (slow tapping) are displayed in Fig. 6C. In addition, we performed a correlation analysis between the PAC differences and the β power differences of each set of adjacent periods. At movement onset, the two parameters were not significantly correlated in the pressing task, whereas they were significantly correlated in the slow tapping task (Fig. 6D). The correlation results for differences between any two adjacent periods are presented in Table 2, which showed no consistent relationship between β power change and PAC change during the movement. The above findings suggest that the movement-related dynPAC
