Obstacle Avoidance amongst Parkinson Disease Patients Is Challenged in a Threatening Context

Figure 5

Obstacle negotiation error rates for neurologically normal older adults (CTRL; 𝑛=10), the MEDS off Parkinson disease patients (OFF; 𝑛=10), and the same patients with normal medication levels restored (ON; 𝑛=10). In both the low and high environmental threat conditions, the obstacle dimensions were identical.