Tactile mouse generating velvet hand illusion on human palm. (8th September 2016)

• Record Type: Journal Article
• Authors: Rajaei, Nadar; Ohka, Masahiro; Nomura, Hironaga; Komura, Hiraku; Matsushita, Shojiro; Miyaoka, Tetsu
• Is Part Of: International journal of advanced robotic systems. Volume 13:Number 5(2016)
• Publication Date: 2016-09-08
• Subjects: Human–machine interaction -- tactile display -- illusion -- velvet hand -- psychophysical experiment; Robotics -- Periodicals; Robotics; Periodicals; 629.892
• DOI: 10.1177/1729881416658170
• Languages: English
• ISSNs: 1729-8806

Abstract

To enhance virtual reality (VR) generated by tactile displays, we have focused on a novel tactile illusion, called the Velvet Hand Illusion (VHI). In VHI, moving two parallel wires back and forth between the two hands leads humans to perceive a velvet-like surface between their hands. In earlier studies, we revealed that the intensity of VHI could be controlled by a ratio ( r / D ), where r and D are the wire stroke and wire distance, respectively. According to these findings, we investigate in this study whether a common tactile display is able to produce VHI, and whether the ratio can also control VHI intensity. We prepare a dot-matrix display as a tactile display in which moving one line of the display's pins is considered as a wire pattern. We investigate the VHI intensity with regard to changing the stroke r and the line distance D using paired comparison. Experimental results show that the VHI intensity is increased or decreased by changing r and D . We conclude that VHI can be created by the tactile display, and the intensity of VHI is controlled by changing the ratio of r / D .