Figure 2

Group comparisons of rsFC using the bilateral SI as the seed in all group contrasts. Abbreviations: PD-MCI-SD = Parkinson’s disease with a shorter duration of parkinsonism before mild cognitive impairment diagnosis; PD-MCI-LD = Parkinson’s disease with a longer duration of parkinsonism before mild cognitive impairment diagnosis; PD-IC = Parkinson’s disease with intact cognition; rsFC = resting-state functional connectivity; SI = Substantia innominata.