Providing Skin Stretch On The Lower Back - Design And Psychophysical Evaluation With A Stepping Task

Erick Jimenez-Gonzalez, Chen Avraham, Asya Mikhaylov, Simona Bar-Haim, Ilana Nisky

Research output: Contribution to journalArticlepeer-review


Haptic devices are becoming popular in many applications, including medical, gaming, and consumer devices. Yet, the majority of studies focus on the use of haptics for the upper limbs, with much less attention to the stimulation of other regions of the body such as the lower back. In this study, we designed three types of skin stretch stimulation devices that can be placed on a belt and apply tactile stimulation on the lower back. We present these devices that apply lateral, longitudinal, and rotational skin stretch stimulation on the lower back, and evaluate their effectiveness in providing haptic commands for the lower limbs of healthy participants. We designed psychophysical experiments that quantify the discrimination accuracy of participants with a stepping task. The results demonstrate the ability of participants to discriminate two out of three features of stimulation provided on the lower back. These results demonstrate that skin stretch on the lower back can effectively transmit haptic signals and elicit responses in the lower limb for various applications.

Original languageEnglish
Pages (from-to)1-12
Number of pages12
JournalIEEE Transactions on Haptics
StateAccepted/In press - 1 Jan 2024


  • Actuators
  • Back
  • Belts
  • Haptic interfaces
  • lower back
  • psychophysics
  • Servomotors
  • Skin
  • skin stretch
  • stepping task
  • tactile stimulation device design
  • Task analysis
  • wearable haptics

ASJC Scopus subject areas

  • Human-Computer Interaction
  • Computer Science Applications


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