1. Comparison of Virtual Wheelchair Driving Performance of People With Traumatic Brain Injury Using an Isometric and a Conventional Joystick 
Harshal Mahajan, MS, Donald M. Spaeth, PhD, Brad E. Dicianno, MD, Diane M. Collins, PhD, Michael L. Boninger, MD, Rory A. Cooper, PhD 
Archives of Physical Medicine and Rehabilitation 
Volume 92, Issue 8, Pages (August 2011)
DOI: /j.apmr
Copyright © 2011 American Congress of Rehabilitation Medicine Terms and Conditions

2. Fig 1
Driving tasks. Task 1: left turn along hallway. Task 2: right turn along hallway. Task 3: drive straight along hallway and enter an elevator. Task 4: maneuver in a tight office area.
Archives of Physical Medicine and Rehabilitation  , DOI: ( /j.apmr )
Copyright © 2011 American Congress of Rehabilitation Medicine Terms and Conditions

3. Fig 2
Sampling gates (in blue). The task trajectory is sampled to generate gates that are most orthogonal to the 2 boundaries. Locus of midpoints (in red) of these gates defines the ideal path in that task segment.
Archives of Physical Medicine and Rehabilitation  , DOI: ( /j.apmr )
Copyright © 2011 American Congress of Rehabilitation Medicine Terms and Conditions