Freezing of gait is associated with increased saccade latency and variability in Parkinson’s disease

Among the many gait difficulties in people with Parkinson's disease (PD), freezing of gait (FOG) is one of the most common, affecting over half of the PD population (Forsaa et al., 2015). FOG manifests as episodic interruptions of the gait cycle during normal walking and other complex gait tasks like turning (Bloem et al., 2004; Nutt et al., 2011). Additional research into the mechanisms of FOG showed that freezing is not limited to gait, but can also be observed in other motor tasks, such as upper limb movements and speech (Moreau et al., 2007; Williams et al., 2013; Vercruysse et al., 2014a).

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