Freezing of gait in Parkinson's disease: The paradoxical interplay between gait and cognition

Freezing of gait is a disabling episodic gait disturbance common in patients with Parkinson's disease. Recent evidences suggest a complex interplay between gait impairment and executive functions. Aim of our study was to evaluate whether specific motor conditions (sitting or walking) influence cognitive performance in patients with or without different types of freezing.Eight healthy controls, eight patients without freezing, nine patients with...