Basic Investigation of Tactile Gestalt Generating Surface Smoothness Feeling

• Komura Hiraku

  Nagoya University

• Ohka Masahiro

  Nagoya University

Bibliographic Information

Other Title

• 滑らかさを惹起する触覚のGestaltに関する基礎調査

Abstract

Smoothness is one of the important factors in controlling texture sensation in tactile VR. In previous research, we created the feeling of smoothness by utilizing Velvet Hand Illusion (VHI) which is one tactile illusion phenomenon. We adopted a dot-matrix display as a haptic device to clarify that VHI can be created in the dot-matrix display with the two parallel moving lines formed by the stimulus pins. From this result, it was clarified that we can perceive apparent motion in tactile sensation as well as visual sensation. In our more recent research we focus on the tactile Gestalt which consists of the two parallel moving lines. The tactile Gestalt is different from the visual Gestalt because we can recognize not only shapes such as a letter and a figure, but also smoothness in the tactile Gestalt. Since the dot-matrix display can create various dot patterns, it is possible to clarify the condition of the tactile Gestalt to generate VHI feeling. Therefore, in this research, we aim to clarify the basic characteristics of tactile Gestalt using the dot-matrix display. We investigate the relationship between the pins distance forming a line and VHI occurrence, and the absolute threshold of line length which is the trigger to generate VHI. As a result, the threshold of the distance between pins forming the line coincides with two point threshold of the palm. Also, the absolute threshold of the parallel line length is about 28 mm.

Journal

• Transactions of the Virtual Reality Society of Japan

  Transactions of the Virtual Reality Society of Japan 24 (1), 43-51, 2019

  THE VIRTUAL REALITY SOCIETY OF JAPAN

Keywords

• Haptics
• Tactile Gestalt
• Psychophysics
• Velvet Hand Illusion
• Dot-matrix display
• Texture sensation

Details

• CRID: 1390845713073089536
• NII Article ID: 130007628866
• DOI: 10.18974/tvrsj.24.1_43
• ISSN: 24239593
• ISSN: 1344011X
• Text Lang: ja
• Data Source:
  • JaLC
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed