Quantitative evaluation of sense of discrepancy of operation response using event-related potential

• UEDA Kazutaka

  Department of Mechanical Engineering, Graduate School of Engineering, The University of Tokyo

• SAKAI Yuki

  Department of Mechanical Engineering, Graduate School of Engineering, The University of Tokyo

• YANAGISAWA Hideyoshi

  Department of Mechanical Engineering, Graduate School of Engineering, The University of Tokyo

Abstract

A user operating a mechanical devise receives sensory information (e.g., sounds and vibrations) generated by the mechanical operation in response to the operation input. With the digitization of products, the mechanical operation response is removed as is the associated sensory information, thus there is no confirmation of the completed operation. Adding a digital sound or vibration could solve this problem. The challenge, however, is designing an operation response without inducing any sense of discrepancy. The purpose of this study was to create a quantitative, objective method to evaluate the sense of discrepancy to the operation response and the habituation to the response. We investigated the possibility of using an event-related potential component (P300), believed to reflect attention to stimuli, as a quantitative evaluation method of the sense of discrepancy. Experiment 1: We studied the sense of discrepancy between the type of operation response (sound, vibration, none), and the shutter operation of a mirrorless single-lens camera, using subjective evaluation and the P300. We confirmed that the P300 amplitude corresponded to the degree of the sense of discrepancy. Experiment 2: With the mouse click being the operation sound, the attenuation of the P300 amplitude by the repeated operation was consistent with the subjective habituation to the response. We conclude, based on these results, that the P300 amplitude could help determine the sense of discrepancy to the operation response and the habituation to the response.

Journal

• Journal of Advanced Mechanical Design, Systems, and Manufacturing

  Journal of Advanced Mechanical Design, Systems, and Manufacturing 15 (2), JAMDSM0023-JAMDSM0023, 2021

  The Japan Society of Mechanical Engineers

Keywords

• Operation response
• Product
• Sense of discrepancy
• Habituation
• Event-related potential
• P300

Details

• CRID: 1390006065651356544
• NII Article ID: 130008009882
• DOI: 10.1299/jamdsm.2021jamdsm0023
• ISSN: 18813054
• Web Site: https://www.jstage.jst.go.jp/article/jamdsm/15/2/15_2021jamdsm0023/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed