From @uga.cc.uga.edu:owner-virtu-l@VMD.CSO.UIUC.EDU Fri Oct 14 16:41:05 1994 Return-Path: <@uga.cc.uga.edu:owner-virtu-l@VMD.CSO.UIUC.EDU> Received: from mx5.u.washington.edu by stein2.u.washington.edu (5.65+UW94.4/UW-NDC Revision: 2.30 ) id AA28560; Fri, 14 Oct 94 16:41:05 -0700 Received: from uga.cc.uga.edu by mx5.u.washington.edu (5.65+UW94.10/UW-NDC Revision: 2.30 ) id AA10916; Fri, 14 Oct 94 16:40:59 -0700 Message-Id: <9410142340.AA10916@mx5.u.washington.edu> Received: from UGA.CC.UGA.EDU by uga.cc.uga.edu (IBM VM SMTP V2R2) with BSMTP id 9229; Fri, 14 Oct 94 19:42:04 EDT Received: from UGA.CC.UGA.EDU (NJE origin LISTSERV@UGA) by UGA.CC.UGA.EDU (LMail V1.2a/1.8a) with BSMTP id 2097; Fri, 14 Oct 1994 16:17:16 -0400 Date: Fri, 14 Oct 1994 15:46:00 EST Reply-To: "STARS::PSOTKA" Sender: "VR / sci.virtual-worlds" From: "STARS::PSOTKA" Subject: SCI: Superior memory for Augmented Reality than for VR Comments: To: VIRTU-L To: Multiple recipients of list VIRTU-L Status: OR I have just finished a short experiment comparing recall of 21 objects in a circle around you (things like a fan, coke machine, robot, cactus, etc). You could either look at them for 5 secs, one at a time in the circle around you using a VR or a seethru HMD that we constructed out of a Sharp VGA overhead projection panel. The objects were cartoons constructed in REND 386 on a 486 pc with a logitech tracker. What was amazing to me was the real diffrence in recall of teh 21 objects. In the VR condition recall for the first 10 times this was done was almost half of the AR (augmented or seethru) condition: 12 out of 21 versus 18 out of 21 (weel 2/3rds anyway). Both conditions were monocular using the same resolution panel and tracker and computer. So why the difference? I think it has to do with losing your frame of reference and coordinate system in the VR condition. You don't remember where the objects are because when you look out from the HMD to do the recall a minute later, you can't remember where the objects were. In the AR, the objecrts are in some sense still "there" with you in the room when you do the recall ... Any ideas or explanations form you all? Joe