JACIII Vol.23 No.6 pp. 1080-1088
doi: 10.20965/jaciii.2019.p1080


Effects of Shape Characteristics on Tactile Sensing Recognition and Brain Activation

Hidenori Sakaniwa*, Stephanie Sutoko**, Akiko Obata**, Hirokazu Atsumori**, Nobuhiro Fukuda***, Masashi Kiguchi**, and Akihiko Kandori**

*Center for Exploratory Research, Hitachi, Ltd.
1-280 Higashi-koigakubo, Kokubunji, Tokyo 185-8601, Japan

**Center for Exploratory Research, Hitachi, Ltd.
2520 Akanuma, Hatoyama-machi, Hiki-gun, Saitama 350-0395, Japan

***Center for Technology Innovation – Digital Technology, Hitachi, Ltd.
1-280 Higashi-koigakubo, Kokubunji, Tokyo 185-8601, Japan

February 20, 2019
August 16, 2019
November 20, 2019
tactile sensing, shape recognition, complexity, brain activation, NIRS
Effects of Shape Characteristics on Tactile Sensing Recognition and Brain Activation

Tactile sensing recognition and brain activation

Training tactile sensing for shape recognition is considered to be an effective rehabilitation technique. Previous studies in tactile sensing showed a tendency of recognition ambiguity, thus necessitating tactile sensing rehabilitation. Eleven subjects observed invisible objects using their fingers and were asked to identify the shape of the objects. The relationship between the degree of recognition and shape complexity was investigated. The results showed high self-confidence in recognizing high complexity shapes. The recognition process was confirmed in a second experiment measuring brain activation using near-infrared spectroscopy. Measurement of eight subjects showed the activation of verbal and visual processing regions, indicating that the act of handling the shape was translated to verbal expression and visual imaging. These results potentially quantify tactile sensing and contribute to the realization of personalized rehabilitation.

Cite this article as:
H. Sakaniwa, S. Sutoko, A. Obata, H. Atsumori, N. Fukuda, M. Kiguchi, and A. Kandori, “Effects of Shape Characteristics on Tactile Sensing Recognition and Brain Activation,” J. Adv. Comput. Intell. Intell. Inform., Vol.23, No.6, pp. 1080-1088, 2019.
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Last updated on Feb. 17, 2020