did not reach statistical significancep = 0.1264
‘Freezing Episodes’ in ‘Stimulation Off’ The frequency domain spectra pointed to higher activity in both TA and GA during ‘freezing’ episodes compared to ‘regular gait’ in 4 PD freezers, however, this did not reach statistical significance in the cluster-based comparison of the frequency domain spectra from 1 to 45 Hz (TA: p = 0.1264; GA: p = 0.1204) ( Figures 2A,B ).