Correlations among the PSD-EEG, striatal [18F]FDOPA PET/CT uptake ratio and neuropsychological parameters
Almost all of the PSD-EEG parameters significantly negatively correlated with the [18F]FDOPA PET/CT uptake ratio in the putamen (p < 0.05; Table 2), excluding only the PSD-EEG theta band of the C21 (SMA) and D10 (M1) (p > 0.05; Table 2). The significant negative correlations between PSD-EEG and [18F]FDOPA PET/CT uptake ratio in the caudate nucleus were found for the PSD-EEG of the: (i) lower-alpha band of the C21 (SMA) and D05 (PFC), (ii) maximal peak of the C21 (SMA) and D10 (M1), as well as for (iii) theta band of the D05 (PFC) (p< 0.05; Table 2).
Almost all the PDS-EEG parameters positively significantly correlated with the TMT-A and TMT-B (p < 0.05; Table 2), excluding only correlations of the lower-alpha band and maximal peak of the D10 (M1) with TMT-A (p > 0.05; Table 2). Furthermore, the PSD-EEG theta band of the C21 (SMA) and D05 (PFC) was positively significantly correlated with the ST-II (p < 0.05; Table 2).
Moreover, the [18F]FDOPA PET/CT uptake ratio in the putamen and caudate nucleus negatively significantly correlated with the TMT-B, as well as the caudate nuclei [18F]FDOPA PET/CT uptake ratio negatively significantly correlated with the TMT-A (p < 0.05; Table 2).