P1‐182: Comparison between MMSE and Montreal Cognitive Assessment (MoCA) for detecting cognitive impairments in patients with Parkinson's disease: A multicenter study of Keio PD database

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posterior DMN connectivity normalized in the middle and posterior cingulate gyri but remained in the precuneus and retrosplenial cortex after adjusting for global cortical PiB retention in DLB. Conclusions: Patients with DLB are characterized by increases in the anterior DMN and decreases in the posterior DMN and PVN. This reciprocal change in the anterior and posterior DMN identified in patients with DLB closely resemble the DMN changes observed in AD. Although As load modifies the decreases in the middle and posterior cingulate regions in the posterior DMN, connectivity abnormalities in DLB persist even after controlling for As load. The pattern of posterior DMN and PVN connectivity decreases sparing the middle and posterior cingulate gyri after adjusting for As load is consistent with the pattern of regional hypometabolism typically observed in DLB.

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