Table 5.

A. Spearman rho values from correlation analyses between kinematic indexes and gamma (30–80 Hz) ERS amplitude with p-values for mov0, mov3 and mov4. B) Practice-related changes in the relationship between gamma amplitude and kinematic performance were investigated using a non-parametric permutation approach for repeated correlation measures (10,000 permutations).

A.	mov0		mov3		mov4
	ρ	P	ρ	p	ρ	p
Mov. Time - Gamma ERS	−0.311	0.026	−0.417	0.003	−0.397	0.004
Peak Vel. - Gamma ERS	0.413	0.003	0.314	0.025	0.273	0.055
Mov. Extent - Gamma ERS	0.182	0.201	−0.081	0.572	0.113	0.435
Mean Vel. - Gamma ERS	0.384	0.005	0.363	0.010	0.381	0.006
B.	mov0 vs mov3		mov0 vs mov4		mov3 vs mov4
	Test t	P	Test t	p	Test t	p
Mov. Time - Gamma ERS	0.092	0.372	0.0727	0.493	0.0189	0.852
Peak Vel. - Gamma ERS	0.085	0.363	0.061	0.580	0.023	0.818
Mov. Extent - Gamma ERS	0.253	0.077	0.0316	0.823	0.285	0.060
Mean Vel. - Gamma ERS	0.030	0.722	0.0124	0.903	0.0175	0.871