Fig. 5.

The effect of STN DBS on saccades. PD patients performed four oculomotor tasks: VGS, GS (A), MGS, and AS (B). The traces show saccade recordings in a single PD patient when DBS was off (upper traces) and on (lower traces). Conventions as in Fig. 3. See the scale linked to each figure. For all tasks, the amplitude of saccades was improved when DBS was on relative to when it was off. The PD patients continued to take their regular doses of PD medication. Reproduced with permission from Yugeta et al. (2010).