- Visual-Motor Recalibration
in Treadmill Walking
-
- Date: 03/13/00
- Time: 10:00 a.m.
- Location: Bldg.262/Rm.100
- Speaker: Dr. Dennis Proffitt
- University
of Virginia
Simulating walking requires both visual
and motor information. In this research, we address the question
of how to combine the VE headmount and treadmill information
to adequately represent walking in a given environment. Intuitively,
one would set the simulated optic flow equal to the walking speed
(as in normal walking). However, our findings show this produces
a perceptual mismatch: participants feel the visual environment
moves too slowly given their motor effort. We have found a way
to cancel the mismatch between simulated optic flow and motor
effort using a walking-in-place aftereffect. With this aftereffect,
we can predict the simulated optic flow and treadmill walking
speeds appropriate to any gravitational environment.
POC: Mary Kaiser (650) 604-4448 |
