Full-Hand Electro-Tactile Feedback without Obstructing Palmar Side of Hand

Video figure for "Full-Hand Electro-Tactile Feedback without Obstructing Palmar Side of Hand" from ACM CHI 2023. This work was presented at the ACM CHI 2023 conference in Hamburg, Germany by Yudai Tanaka. This work was done in collaboration with Alan Shen, Andy Kong and Pedro Lopes at the University of Chicago's Human Computer Integration Lab.

Abstract:
We present a technique to render tactile feedback to the palmar side of the hand while keeping it unobstructed and, thus, preserving manual dexterity during interactions with physical objects. We implement this by applying electro-tactile stimulation only to the back of the hand and to the wrist. In our approach, there are no electrodes on the palmar side, yet that is where tactile sensations are felt. While we place electrodes outside the user’s palm, we do so in strategic locations that conduct the electrical currents to the median/ulnar nerves, causing tactile sensations on the palmar side of the hand. In our user studies, we demonstrated that our approach renders tactile sensations to 11 different locations on the palmar side while keeping users’ palms free for dexterous manipulations. Our approach enables new applications such as tactile notifications during dexterous activities or VR experiences that rely heavily on physical props.

Find out more about this work: https://lab.plopes.org/#boh-electro-t...