Effect of Mechanical Ground on the Vibrotactile Perceived Intensity of a Handheld Object

  • Inwook Hwang
  • Seungmoon Choi
Part of the Lecture Notes in Computer Science book series (LNCS, volume 7283)


This study investigates the effect of mechanical ground on the perceived intensity of vibration transmitted through a handheld object. To this end, we carried out an intensity matching experiment in which the points of subjective equality were measured between grounded and ungrounded conditions. Results showed that the grounded vibrations were perceived to be 1.63–1.86 times stronger than the ungrounded vibrations. This intensity difference was decreased with increasing vibration frequency. Our results are in line with the general fact that afferent movements, which are more apparent under the ungrounded condition, may induce tactile suppression.


Vibration perception perceived intensity mechanical ground handheld object tactile suppression 


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Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • Inwook Hwang
    • 1
  • Seungmoon Choi
    • 1
  1. 1.Haptics and Virtual Reality Laboratory, Department of Computer Science and EngineeringPohang University of Science and Technology (POSTECH)Republic of Korea

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