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Related Concept Videos

Design Example: Resistive Touchscreen01:14

Design Example: Resistive Touchscreen

349
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...
349
Tactile and Chemical Senses01:27

Tactile and Chemical Senses

324
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.
324

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Related Experiment Video

Updated: Jul 19, 2025

Applying Incongruent Visual-Tactile Stimuli during Object Transfer with Vibro-Tactile Feedback
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Between-Tactor Display Using Dynamic Tactile Stimuli for Directional Cueing in Vibrating Environments.

Ryo Eguchi, David Vacek, Cole Godzinski

    IEEE Transactions on Haptics
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    Summary

    Dynamic vibrotactile displays enhance directional cueing accuracy in noisy environments. This study shows dynamic stimuli improve navigation performance compared to static stimuli, even with chair vibration.

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    Area of Science:

    • Human-Computer Interaction
    • Haptic Feedback Systems
    • Navigation Technology

    Background:

    • Torso-worn vibrotactile devices are crucial for directional cueing in visually limited environments.
    • Increasing resolution with fewer motors is key, but performance in vibrating conditions is understudied.
    • Between-tactor displays offer higher resolution but their efficacy in noisy environments remains unknown.

    Purpose of the Study:

    • To propose and verify a novel between-tactor vibrotactile display using dynamic stimuli.
    • To assess the effectiveness of dynamic stimuli in a vibrating environment.
    • To improve directional cueing resolution and accuracy in challenging conditions.

    Main Methods:

    • Developed a 12-direction, 6-tactor waist belt device.
    • Compared static (constant vibration) and dynamic (moving vibration) stimuli.
    • Evaluated performance in a vibrating chair with and without white noise, measuring accuracy and task completion time.

    Main Results:

    • Dynamic stimuli significantly increased direction recognition accuracy across all tested conditions.
    • Task completion time remained comparable between static and dynamic stimuli.
    • Effectiveness was validated even in the presence of chair vibration and audio masking.

    Conclusions:

    • Dynamic vibrotactile stimuli represent a significant advancement for between-tactor displays.
    • This technology offers improved navigation and directional cueing in challenging, vibrating environments.
    • The findings have implications for enhancing human-machine interaction in fields requiring non-visual guidance.