Cognitive decline is a burdensome extra-motor symptom associated with Parkinson's
disease (PD). This study aimed at investigating intrinsic functional connectivity (iFC) of the …

Disturbances in intrinsic activity during resting-state functional MRI (rsfMRI) are common in
Parkinson's disease (PD), but have largely been studied in a priori defined subnetworks …

Cognitive impairment is common in PD, even in early stages. The construct of mild cognitive
impairment has been used to identify clinically evident cognitive impairment without …

Mild cognitive impairment in Parkinson's disease (PD-M) is related to a high risk of
dementia. This study explored the whole-brain functional networks in early-stage PD-M …

Objective: To evaluate fMRI whole-brain resting-state functional connectivity changes in
relation to cognitive decline in Parkinson disease (PD) over a 3-year period. Methods …

Cognitive deficits in Parkinson's disease are thought to be related to altered functional brain
connectivity. To date, cognitive-related changes in Parkinson's disease have never been …

Background: Cognitive impairment in Parkinson's disease (PD) is associated with altered
connectivity of the resting state networks (RSNs). Longitudinal studies in well cognitively …

Mild cognitive impairment (MCI) is prevalent in 15%–40% of Parkinson's disease (PD)
patients at diagnosis. In this investigation, we study brain intra‐and inter‐network alterations …

The objective was to assess dynamic functional connectivity (FC) and local/global
connectivity in Parkinson's disease (PD) patients with mild cognitive impairment (PD-MCI) …

Dynamic functional connectivity captures temporal variations of functional connectivity
during MRI acquisition and it may be a suitable method to detect cognitive changes in …