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Related Concept Videos

Tactile and Chemical Senses01:27

Tactile and Chemical Senses

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Tactile senses encompass touch, temperature, and pain, each mediated by specific receptors. Touch receptors detect mechanical energy or pressure against the skin. Sensory fibers from these receptors enter the spinal cord and relay information to the brain stem. Here, most fibers cross over to the opposite side of the brain. The touch information then moves to the thalamus, which projects a map of the body's surface onto the somatosensory areas of the parietal lobes in the cerebral cortex.
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Design Example: Resistive Touchscreen01:14

Design Example: Resistive Touchscreen

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A device engineer plays a crucial role in designing user interfaces for mobile devices. One such interface is the resistive touchscreen, which fundamentally consists of two metallic layers: a flexible upper layer and a rigid lower layer, separated by a narrow gap. The high resistance between these two layers is a key characteristic of this design.
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Somatosensation01:33

Somatosensation

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The somatosensory system relays sensory information from the skin, mucous membranes, limbs, and joints. Somatosensation is more familiarly known as the sense of touch. A typical somatosensory pathway includes three types of long neurons: primary, secondary, and tertiary. Primary neurons have cell bodies located near the spinal cord in groups of neurons called dorsal root ganglia. The sensory neurons of ganglia innervate designated areas of skin called dermatomes.
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Sensory Modalities01:15

Sensory Modalities

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Sensation typically is the process by which the sensory receptors and sense organs detect stimuli from the internal and external environment and transmit this information to the central nervous system for processing.
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Perception of Sound Waves01:01

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The human ear is not equally sensitive to all frequencies in the audible range. It may perceive sound waves with the same pressure but different frequencies as having different loudness. Moreover, the perception of sound waves depends on the health of an individual's ears, which decays with age. The health of one's ears may also be affected by regular exposure to loud noises.
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Related Experiment Video

Updated: Aug 29, 2025

Applying Incongruent Visual-Tactile Stimuli during Object Transfer with Vibro-Tactile Feedback
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Augmented tactile-perception and haptic-feedback rings as human-machine interfaces aiming for immersive interactions.

Zhongda Sun1,2,3,4, Minglu Zhu1,2,4, Xuechuan Shan3,5

  • 1Department of Electrical & Computer Engineering, National University of Singapore, 4 Engineering Drive 3, Singapore, 117583, Singapore.

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Summary

New wearable rings offer enhanced somatosensory sensation for the metaverse. These devices provide tactile and temperature feedback, improving virtual reality immersion and interaction.

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Area of Science:

  • Wearable technology
  • Human-computer interaction
  • Virtual reality

Background:

  • Virtual reality (VR) advancements enable immersive metaverse experiences.
  • Somatosensory feedback is crucial for comprehensive virtual perception.
  • Current wearable devices lack integrated multimodal sensing and feedback.

Purpose of the Study:

  • To develop augmented tactile-perception and haptic-feedback rings.
  • To integrate multimodal sensing (tactile, temperature) and feedback (vibro-, thermo-haptic).
  • To enable high-resolution finger motion tracking and gesture recognition in the metaverse.

Main Methods:

  • Designed integrated rings with triboelectric and pyroelectric sensors.
  • Incorporated vibrators and nichrome heaters for haptic feedback.
  • Utilized a custom low-power wireless platform and voltage integration processing.

Main Results:

  • Achieved high-resolution continuous finger motion tracking via triboelectric sensors.
  • Demonstrated superior performance in gesture/object recognition using AI analysis.
  • Successfully created an interactive metaverse platform with cross-space perception.

Conclusions:

  • The developed rings significantly enhance metaverse user experience.
  • Multimodal sensing and feedback create a more immersive virtual social environment.
  • This technology offers a face-to-face-like immersive virtual social experience.