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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.
When a user touches the screen, the two layers make contact at a specific point known as the touchpoint. This contact reduces the resistance between...
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What is a Sensory System?01:31

What is a Sensory System?

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Sensory systems detect stimuli—such as light and sound waves—and transduce them into neural signals that can be interpreted by the nervous system. In addition to external stimuli detected by the senses, some sensory systems detect internal stimuli—such as the proprioceptors in muscles and tendons that send feedback about limb position.
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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 Functions of the Skin01:16

Sensory Functions of the Skin

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The skin is the largest organ of the human body and plays a crucial role in our sensory perception. It contains a vast network of sensory receptors that contribute to the skin's protective function by perceiving physical, biological, and environmental cues and generating relevant responses.
There are two main categories of receptors on the skin: capsulated and non-capsulated. The non-capsulated ones are mainly the pain receptors. The capsulated ones can be further categorized based on the...
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Sensory Perception: Organization of the Somatosensory System01:11

Sensory Perception: Organization of the Somatosensory System

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The somatosensory system is the central and peripheral nervous system component that senses and processes touch, pressure, pain, temperature, and body position or proprioception. The process of sensation takes place at three levels:
The receptor level:
The receptor level is the first stage of sensation. It involves the detection of a stimulus by specialized sensory receptors. The stimulus must arrive within the receptor's receptive field. Next, the receptor converts the energy of the...
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Related Experiment Video

Updated: Feb 18, 2026

A Tactile Automated Passive-Finger Stimulator TAPS
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A Tactile Automated Passive-Finger Stimulator TAPS

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Novel Tactile Sensor Technology and Smart Tactile Sensing Systems: A Review.

Liang Zou1, Chang Ge2, Z Jane Wang3

  • 1Department of Electrical and Computer Engineering, University of British Columbia, Vancouver, BC V6T 1Z4, Canada. liangzou@ece.ubc.ca.

Sensors (Basel, Switzerland)
|November 18, 2017
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Summary

Smart tactile sensing systems offer significant potential in industry and medicine. Further interdisciplinary research is needed to overcome challenges in these developing technologies.

Keywords:
machine learningmicrofabricationsensor fusionsmart tactile sensing

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Area of Science:

  • Engineering
  • Biomedical Engineering
  • Materials Science

Background:

  • Smart tactile sensing systems are increasingly important in industrial and biomedical applications.
  • Despite advancements, tactile sensing technologies are nascent, facing unresolved technical and systemic challenges.
  • Interdisciplinary collaboration is crucial for addressing the complexities of smart tactile sensing.

Purpose of the Study:

  • To provide a comprehensive overview of smart tactile sensing systems.
  • To focus on signal processing techniques for interpreting data from tactile and other sensors.
  • To discuss transduction principles, fabrication, and structural aspects of tactile sensors.

Main Methods:

  • Review of existing literature on smart tactile sensing systems.
  • Analysis of signal processing technologies for tactile data interpretation.
  • Discussion of transduction mechanisms, fabrication methods, and sensor structures.

Main Results:

  • Overview of various tactile sensing techniques and their underlying principles.
  • Detailed examination of signal processing methods for enhancing tactile sensor data.
  • Evaluation of the advantages and disadvantages of different fabrication approaches and sensor designs.

Conclusions:

  • Smart tactile sensing is a rapidly evolving field with substantial potential.
  • Key challenges in transduction, fabrication, signal processing, and system integration persist.
  • Future advancements necessitate continued interdisciplinary research and development.