Dextrous and shared interaction with medical data: stereoscopic vision is more important than hand-image collocation.
The current experiment was carried out to extend our knowledge about the relative importance of stereoscopic display and hand-image collocation for dextrous interaction. We devised a new task, the Volumetric Dexterity Test (VDT), which quite accurately duplicates the way professional personnel such as surgeons and radiologists interact with detailed medical data in a VR environment. Our results were surprising. Stereo vision was very important to both accuracy and speed of task completion, as we found previously. But the presence of hand-image collocation did not improve accuracy, despite the fact that this was a truly three-dimensional task. If this finding is borne out it has important implications for the volumetric presentation of medical data to individual practitioners and in group settings.
Waterworth
John A
JA
Interactive Institute--Tools for Creativity Studio Tvistevägen 47, 907 19 Umeå, Sweden.
D001288:Attention; D003626:Data Display; D003867:Depth Perception; D006801:Humans; D007089:Image Enhancement; D008838:Microcomputers; D017063:Outcome Assessment, Health Care; D011597:Psychomotor Performance; D011930:Reaction Time; D014584:User-Computer Interface