Freezing of gait and response conflict in Parkinson's disease: computational directions

摘要

Figure 1. Virtual reality locomotion paradigm used in the Matar et al. (2013) study. The right side shows feet resting over a button box to control and measure the stepping action of a subject while reacting to stimuli appearing in the virtual reality environment (left). The paradigm allows for measuring accuracy (i.e., whether the subject performs correct movements) and latency of foot movement (i.e., time taken to initiate walking response) while the subject is navigating the environment via locomotive responses and alternating left–right sequences of footsteps.