From: J.P.Wann@RDG.AC.UK Subject: Re: HUMAN-FACTORS: Long term immersion in VR Date: Mon, 24 Jun 1996 10:51:23 +0100 Message-ID: >Toni Emerson ("temerson"@hitl.washington.edu) wrote: >>: I'm looking for studies on the effects of long term immersion in HMDs. >willp@magik.albany.net (Will Pierce) replied: >My personal record is about 35 minutes in Virtuality (booth, sit-down >style.) >And boy did it cost. Then longest we have used in our studies is 30 minutes, which we tried with Virtuality's new headset in bi-ocular display mode, WITHOUT any apparant problems - [total study 50 participants, 20 participants at 30mins: see Rushton, Mon-Williams & Wann (1994) Binocular vision in a bi-ocular world: new-generation head-mounted displays avoid causing visual deficit. DISPLAYS 15 (4), 255-260]. As far as I'm aware this is the longest PUBLISHED study, I am aware of some longer exposures being done for other manufacturers, but the results have never been published, which is rather a pity, but also understandable. JW ********************************************************* Dr John P. Wann < J.P.Wann@rdg.ac.uk> ********************************************************** Action Research Laboratory: Development, Rehabilitation, Immersive Virtual Environments (Wann, Mon-Williams, Smyth , Langaas) ARL - DRIVE Department of Psychology University of Reading PO Box 238, Reading RG6 6AL, UK +44 1734 318532 Fx +44 1734 316604 ***********************************************************