Two-Dimensional Moving Phantom Sensation Created by Rotational Skin Stretch Distribution

This study reports on one of the first attempts to achieve a sense of tactile motion in two-dimensions using an array of stationary rotational skin stretch elements presenting a moving phantom sensation. Herein, we propose an algorithm with two independent control parameters (the size of the stimulus area and the size of the area with maximum stimulus) for generating the moving phantom sensation using our skin stretch tactile display device. In our investigations, we first conducted an experiment to identify the relationship between the mechanical action of our device (a rotation) and the perceived stimulus intensity. Then, using the proposed algorithm, we evaluated the continuity, consistency, and position clarity of phantom sensations under several control parameters and motion direction conditions. Our results showed that both control parameters had a significant effect on the continuity of the stimulus in all directions. Furthermore, we confirmed that, using our current algorithm, the size of the stimulus area has a trade-off relation with the stimulus position clarity. We conclude the paper by discussing our findings, new control parameters that may directly determine continuity of the phantom sensation, and factors that may contribute to the consistency of stimulus intensity. This paper provides fundamental insights into the presentation of skin stretch based moving phantom sensations.


Horie, A., Kashino, Z., Shimobayashi, H., & Inami, M. (2021, July). Two-Dimensional Moving Phantom Sensation Created by Rotational Skin Stretch Distribution. In 2021 IEEE World Haptics Conference (WHC) (pp. 139-144). IEEE.

Best Paper Award Nominated

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