Studies have shown α-synuclein pathology in the claustrum of Parkinson’s disease (PD) patients and its correlation with the onset of cognitive dysfunction in PD. In this study we use resting state fMRI to examine claustral functional connectivity network changes in PD patients with mild cognitive impairment. Our results show increased claustral-cortical connectivity in the PD-MCI group, which may indicate additional effort is required in the PD-MCI group to maintain network integration. The increased load of claustrum is somewhat mitigated by medication in PD patients with cognitive impairment.
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