Basic Research for the future

  • 概要


  • 背景


  • 研究の成果


  • 特徴


  • 研究の未来



Project member: Pham Quang Trung


The high-level understanding of human tactile sensing is convinced to provide important hints for tactile sensor design by which raises the level of tactile sensitivity and acuity of robots to human range. This study was motivated by the idea to look for such hints through investigating the poorly known generation process and spatial configuration of tactile receptors. Our approach includes both anatomical method for investigating the generation process of RA-I receptors and simulation method for investigating the effect of spatial configuration on them.

We have successfully developed a novel method allows us to repeatedly observe the development of RA-I (one kind of mechanoreceptors in skin) on the same living mouse, which is not possible in traditional methods. We have also developed a finite-element model of skin, which mimic the three-dimensional configuration of dermal papillae (the location where the RA-I receptor distributed). Simulation results demonstrate that the mechanical response at RA-I receptor appears to help discerning the spatial configuration of similar indenters. An extended simulation also revealed the role of neural branching method in signal pre-processing process at the receptor level.


In future works, we expect to find the potential use of this knowledge in producing micro tactile sensors more densely and designing high-sensitive sensor cover more effectively.

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