From: "PSOTKA, JOSEPH" Subject: Re: SCI: VR AND DIVING Date: Tue, 24 Nov 1992 22:55:30 CST Can anyone give me some more information about the 25% magnification reputed for a mask? Are there any experimental references to this effect? What is the visual field of a mask? I have never understood why goggles aren't used, since they give so much better field of vision ... I have recently discovered that a reduced field of vision can produce these magnification effects, and would like some experimental citations to record the history of our understanding of these effects. thanks Joseph Psotka, Ph.D. Chief, Smart Technology for Training U. S. Army Research Institute ATTN: PERI-ICC 5001 Eisenhower Avenue Alexandria, VA 22333-5600 (703)274-5540/5545/5569 Psotka@alexandria-emh2.army.mil or psotka@26.1.0.50 FAX: 274-5461