Towards a Technology-Based Assessment of Sensory-Motor Pathological States Through Tactile Illusions

Gemma Carolina Bettelani, Alessandro Moscatclli, Matteo Bianchi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Touch provides important information on the physical properties of external objects, and contributes to the sense of our hand position and displacement in perceptual tasks. Recent studies showed that the texture of the touched surface produced a bias on the perceived tactile motion, ultimately affecting the direction of hand motion in reaching tasks. Specifically, moving on a plate with parallel ridges, the hand motion deviates towards a direction opposite with respect to the one predicted by tactile flow mathematical model, i.e. Perpendicular to the ridges. Here, we used this phenomenon to quantitatively assess an impairment in tactile channel. We asked healthy participants slide the hand on a plate with parallel ridges, either with bare fingertip or by wearing a glove. The glove condition simulated a dysfunction in tactile channel, as may occur in pathological conditions, for e.g. Due to a neurological disease. Our hypothesis is that, wearing a glove, the systematic error induced by the texture orientation will be smaller because the information provided by the tactile channel is noisier. Results are in agreement with our hypothesis, and could open interesting perspectives towards a quantitative technology-based tool for the assessment of tactile impairment in pathological conditions.

Original languageEnglish
Title of host publicationBIOROB 2018 - 7th IEEE International Conference on Biomedical Robotics and Biomechatronics
PublisherIEEE Computer Society
Pages225-229
Number of pages5
Volume2018-August
ISBN (Electronic)9781538681831
DOIs
Publication statusPublished - Oct 9 2018
Externally publishedYes
Event7th IEEE RAS/EMBS International Conference on Biomedical Robotics and Biomechatronics, BIOROB 2018 - Enschede, Netherlands
Duration: Aug 26 2018Aug 29 2018

Conference

Conference7th IEEE RAS/EMBS International Conference on Biomedical Robotics and Biomechatronics, BIOROB 2018
Country/TerritoryNetherlands
CityEnschede
Period8/26/188/29/18

ASJC Scopus subject areas

  • Artificial Intelligence
  • Biomedical Engineering
  • Mechanical Engineering

Fingerprint

Dive into the research topics of 'Towards a Technology-Based Assessment of Sensory-Motor Pathological States Through Tactile Illusions'. Together they form a unique fingerprint.

Cite this