Table 3.

Results of the correlation analysis between the bilateral average PSDXb and UPDRS part III.

UPDRS Part III	Bilateral Average PSDXb
	rho	p	p (FDR-Corrected)
UPDRS part III (med−off)	−0.277	0.162	0.648
Tremor	−0.078	0.698	0.877
Rigidity	−0.050	0.804	0.877
Bradykinesia	−0.088	0.664	0.877
Axial symptoms	−0.603	0.001 *	0.006 *
Gait	−0.599	0.001 *	0.006 *
UPDRS part III (med−on)	0.073	0.718	0.877
Tremor	−0.063	0.754	0.877
Rigidity	0.161	0.424	0.877
Bradykinesia	0.019	0.926	0.926
Axial symptoms	0.051	0.801	0.877
Gait	−0.054	0.788	0.877

* represents a statistical correlation (p < 0.05). PSDXb = the ratio of the power spectral density of beta oscillations to that of the LFP signals, FDR = false discovery rate, UPDRS = Unified Parkinson’s Disease Rating Scale.