Nonvisually Guided Locomotion to a Previously Viewed Target in Real and Virtual Environments

摘要

Comparing human performance in a virtual environment (VE) with performance in the real world can provide clues about which aspects of VE technology require improvement. Using a technique previously shown to measure real-world distance judgments accurately, we compared performance in a real-world environment with performance in a virtual model of that environment. The technique required participants to walk without vision to a target after viewing it for 10 s. VE dis- tance judgments averaged 85/100 of the target distance, whereas real-world judg- ments averaged 92/100.