Table 2.

Correlation between sum MI and spectral power in the 3.9–9.8 Hz and 49.8–150.4 Hz range in MC and SMA in normal and stage 3

	Monkey A		Monkey B		Monkey C
	MC	SMA	MC	SMA	MC
Spectral power [3.9–9.8 Hz]
Normal	0.39	0.31	−0.43	−0.08	0.7
Stage 3	0.14	−0.35	−0.28	0.64*	0.26
Spectral power [49.8–150.4 Hz]
Normal	0.09	−0.34	−0.20	0.81**	0.34
Stage 3	0.03	−0.25	−0.66*	−0.77**	−0.43

Shown are coefficients of correlation, calculated separately for each frequency range and stage of parkinsonism in each animal. *P < 0.05, ***P < 0.001. Pearson’s test. Bold values indicate P < 0.05.