Abstract
To construct a high performance human interface such as virtual reality, it is very important to evaluate quantitatively the effects of the modality of information presented by a computer such as vision, sound and force for work efficiency. The authors evaluated quantitatively the effects of VISUAL, FORCE and SOUND CUE in the virtual work space using a space interface device for artificial reality named SPIDAR. We can do various works such as pick-and-place of blocks with two fingers in the virtual work space with vision, force and sound presented by SPIDAR. The results were 1. VISUAL CUE had less effects. 2. FORCE CUE had large effects in the occasion in which the displacements of fingers need to be restricted. 3. SOUND CUE had large effects on work efficiency in the virtual workspace. In the occasion in which FORCE and SOUND CUE were simultaneously presented, the largest effects were obtained than in any other occasions with a single cue. It was because of multimodality of the cues.
