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Disrupted Functional Connectivity of the Nucleus basalis of Meynert in Parkinson's Disease patients with Mild Cognitive Impairment
Chao Zhang1, Weiqiang Dou2, and Kai Xu1
1Department of Radiology, Xuzhou Medical University, Xuzhou, China, 2GE Healthcare,MR Research China, Beijing, China
Our study provides new insights into the neural basis of cognitive dysfunction in PD patients. We also found that BNM-FC can be an effective feature to distinguish PD-MCI from PD-NC.
Figure 1. Functional Connectivity (FC) between the basal nucleus of Meynert (BNM) and whole brain. (A–C): BNM-FC was evaluated in healthy control (HC) (A), Parkinson’s disease with normal cognition (PD-NC) (B), and Parkinson’s disease with mild cognitive impairment (PD-MCI) (C) groups. (D): BNM-FC was decreased in the right superior parietal lobe (SPL) of the PD-MCI group compared to the PD-NC and HC groups.
Figure 2. Classification accuracy of functional connectivity (FC) in the basal nucleus of Meynert (BNM) (BNM-FC) in the right superior parietal lobe (SPL) determined by the leave-one-out cross-validation (LOOCV) method in distinguishing Parkinson’s disease with mild cognitive impairment (PD-MCI) from Parkinson’s disease with normal cognition (PD-NC) patient (A–C). Box plots with whiskers (min–max) show BNM-FC in the right SPL of the three groups (D).