freezing spell

Episodic immobility The ‘off’ component of the on-off phenomenon seen in advanced Parkinson’s disease
Components Hesitation on gait initiation (start-hesitation), upon stopping (stop hesitation) or when walking in crowded places

freezing spell

Neurology Episodic immobility–'off' component of the on-off phenomenon–seen in advanced Parkinson's disease Components Hesitation on gait initiation–start-hesitation, upon stopping–stop hesitation or when walking in crowded places. See On-off phenomenon.