Motor control areas involved in dual-tasking show altered functional connectivity in patients with Parkinson’s disease.
Hyper-connectivity involving the precuneus related to worse dual-task performance in freezers.
Hypo-connectivity within the basal ganglia points to a role for dopamine depletion in dual-task impairment in freezers.
Other functional connectivity patterns underscore executive impairment and loss of automaticity related to freezing of gait.