From: "STARS::PSOTKA" <PSOTKA%STARS.decnet@alexandria-emh2.army.mil>
Subject: RE: SCI: Presence, Telepresence, and Immersion

We are doing some work with questionnaires at USARI and Suzanne
Weghorst at HITL also is working on presence:

Psotka, J.  and Davison, S.  (1993) Cognitive Factors Associated with
Immersion in Virtual Environments.  Proceedings of the 1993 Conference
on Intelligent Computer-Aided Training and Virtual Environment
Technology.  Houston, TX (May).  In press.

Barfield, W. and Weghorst, S. (1993) The sense of presence within
virtual environments: A conceptual framework.  In G. Salvendy and M.
J. Smith (eds.) Human - computer interaction: Software and hardware
interfaces.  New York: Elsevier.