Investigation of Egocentric and Exocentric Distance Perception in Virtual Environments: Application to Enhance Transfer of Training in Multi-model Ves
Abstract
In this report we summarize the results for three experiments completed during
the Link Fellowship period. The aim of the first and second experiments were to test the
efficacy of a novel assessment procedure for determining visual acuity and quantifying
depth errors of observers wearing an optical see-t1u·ough prototype head-mounted
display. If successful, the assessments could provide an optimization procedure capable
of discerning limitations attributed to separate components of the VE system or to the
system as a whole.
The second experiment explored the feasibility of utilizing mixed reality (a mix of
real and virtual items) environments for the study of brain injury. More specifically, we
hypothesized that providing natural spatial and geographical cues to a person with
anterograde amnesia would lead to better transfer of training of therapy to their home
environment. Taken together, these experiments provide the foundation for further testing
ego and exocentric relationships of objects within VEs as they pertain to cognitive
rehabilitation protocols for different populations of persons with acquired brain injury
(e.g., spatial neglect).