Research Areas



Virtual Reality Navigational (VRN) Experiments

Our VRN tests include two classes of interactive virtual reality games testing human's orientation capabilities; to be specific, we test allocentric and egocentric spatial cognitions separately.

The games involves navigation through a virtual building. These games can be played both by a joystick and also a wheelchair that we call it "joychair"! Children and young adults play normally with joystick and older participants play with wheelchair. The main reason to design the wheelchair was to remove the motion sickness due to moving in a virtual domain while the person is sitting still. 

This video shows our virtual building game and what we measure.

To participate in our study, just send us an email; either to Ehsan (, or Mari ( 

Some related publications: