Experimental set-up for Task H, Visit 1 (see Tables 1 and 2 for explanation). Subjects stood upright on force platform and performed gaze shifts while target moved on a solid background. The target moved every 3 to 6 seconds from positions 1 to 4, located 40 to 50 degrees from midline.
Sparto et al. Journal of NeuroEngineering and Rehabilitation 2004 1:14 doi:10.1186/1743-0003-1-14