Improvement of Vibration Sensitivity by Tangential Vibration
Hie-yong Jeong, Mitsuru Higashimori, and Makoto Kaneko
Department of Mechanical Engineering, Graduate School of Engineering, Osaka University
2-1 Yamadagaoka, Suita 565-0871, Japan
A vibration sensitivity is usually defined by the minimum amplitude when a subject perceives the vibration with ω1 which is the frequency of perpendicular direction on the skin surface. In this work, we are interested in how the vibration sensitivity at ω1 is changed under the condition adding the tangential vibration with ω2 which is the frequency of tangential direction on the skin surface. Through all experiments, we found that the vibration sensitivity at ω1 = 8, 10, and 25 Hz is improved approximately 30% with the p-value of below 0.1% by an adequate setting condition of ω2 = 3 Hz.
-  R. T. Verrillo, “Investigation of Some Parameters of the Cutaneous Threshold for Vibration,” The Journal of the Acoustical Society of America, Vol.34, No.11, pp. 1768-1773, 1962.
-  R. T. Verrillo, “Effect of Contactor Area on the Vibrotactile Threshold,” The Journal of the Acoustical Society of America, Vol.35, No.12, pp. 1962-1966, 1963.
-  R. T. Verrillo, A. J. Fraioli, and R. L. Smith, “Sensation magnitude of vibrotactile stimuli,” Perception and Psychophysics, 6, pp. 366-372, 1969.
-  R. T. Verrillo and G. A. Gescheider, “Psychophysical measurements of enhancement, suppression, and surface gradient effects in vibrotaction,” In D. R. Kenshalo (Ed.), “Sensory functions of the skin of humans,” New York: Plenum Press, pp. 153-181, 1979.
-  T. Miyaoka, T. Mano, and H. Fukuda, “Threshold curves and equal-sensation contours for low frequency vibrotactile stimuli on the human glabrous skin,” Japanese Psychological Research, Vol.27, No.3, pp. 145-153, 1985.
-  T. Mano and T. Miyaoka, “Clinical application of microneurography,” In N. Yamaguchi and K. Fujisawa (Ed.), “Recent advances in EEG and EMG data processing,” Amsterdam: Elsevier/North-Holland Biomedical Press, pp. 335-342, 1981.
-  T. Miyaoka and T. Mono, “Relations between neural and psychophysical phenomena of cutaneous mechanoreception,” Clinical Electroencephalography, 24, pp. 471-479, 1982.
-  S. J. Bolanowski, G. A. Gescheider, R. T. Verrillo, and C. M. Checkosky, “Four Channels Mediate the Mechanical Aspects of Touch,” The Journal of the Acoustical Society of America, Vol.84, No.5, pp. 1680-1700, 1988.
-  H. Jeong, M. Kaneko, M. Higashimori, and K. Matsukawa, “Improvement of Tactile sensitivity by Pressing a Finger Base,” Trans. of the Society of Instrument and Control Engineers, Vol.43, No.11, pp. 973-979, 2007 (in Japanese).
-  H. Jeong, M. Higashimori, and M. Kaneko, “Improvement of Touch Sensitivity by Pressing,” Proc. of Int. Conf. of the IEEE Engineering in Medicine and Biology Society, pp. 2409-2414, 2008.
-  I. E. Gordon and C. Cooper, “Improving one's touch,” Nature, 256, pp. 203-204, 1975.
-  S. J. Lederman, “ ‘Improving one’s touch’... and more,” Perception and Psychophysics, 24, 2, pp. 154-160, 1978.
-  D. A. Perry and H. E. Wright, Touch enhancing pad, US Patent No.4657021, 1987.
-  R. Kikuuwe, A. Sano, H. Mochiyama, N. Takesue, and H. Fujimoto, “Enhancing Haptic Detection of Surface Undulation,” ACM Transactions on Applied Perceptions, Vol.2, No.1, pp. 46-67, 2005.
-  R. Kikuuwe, A. Sano, H. Mochiyama, N. Takesue, K. Tsunekawa, S. Suzuki, and H. Fujimoto, “The Tactile Contact Lens,” Proc. of the 3rd IEEE Conf. on Sensors, pp. 535-539, 2004.
-  Y. Tanaka, A. Sano, M. Ito, and H. Fujimoto, “A Novel Tactile Device Considering Nail Function for Changing Capability of Tactile Perception,” Proc. of EuroHaptics 2008, pp. 543-548, 2008.
-  http://www.mess-tek.co.jp/
-  S. P. Káarason, M. A. Srinivasan, and A. M. Annaswamy, “Encoding and Decoding of Static Information in Tactile Sensing Systems,” The Int. Journal of Robotics Research, 18, pp. 131-151, 1999.
-  http://www.nacinc.jp/index.html
-  http://www.moritex.co.jp/
-  R. Gonzalez, R. Woods, and S. Eddins, “Digital Image Processing using Matlab,” Prentice Hall, 2004.
-  G. Gescheider, “Chapter 3: The Classical Psychophysical Methods,” Psychophysics: the fundamentals (3rd ed.), Lawrence Erlbaum Associates, 1977.
This article is published under a Creative Commons Attribution-NoDerivatives 4.0 International License.
Copyright© 2009 by Fuji Technology Press Ltd. and Japan Society of Mechanical Engineers. All right reserved.