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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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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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Updated: Jan 10, 2026

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Visual-tactile perception for a biomimetic robot in constrained environments.

Zhang Yulai, Zhiqiang Yu, Zuowei Chen

    Bioinspiration & Biomimetics
    |November 20, 2025
    PubMed
    Summary

    This study introduces a novel visual-tactile perception system for biomimetic robots, inspired by rats. The system enhances environmental perception and localization accuracy, significantly reducing errors in complex environments.

    Keywords:
    bio-inspired perceptionbiomimeticsrobotics

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    Area of Science:

    • Robotics
    • Biomimetics
    • Sensor Fusion

    Background:

    • Biomimetic robots require advanced environmental perception for real-world applications.
    • Rats utilize complementary visual and tactile sensing for navigation and exploration.
    • Current robotic systems often lack integrated multi-sensory perception capabilities.

    Purpose of the Study:

    • To develop and implement a visual-tactile fusion perception system for a small-scale biomimetic robotic rat.
    • To enhance the robot's perception and localization accuracy in complex environments.
    • To validate the system's performance through physical experiments.

    Main Methods:

    • Utilizing binocular vision with an attention-based network for depth image estimation.
    • Implementing a dynamic object removal module to improve perception accuracy by 14.22%.
    • Integrating a whisker sensor for enhanced contour and boundary detection in narrow spaces, achieving >97% accuracy for obstacle contours and >93% for environmental boundaries.

    Main Results:

    • Achieved fusion of vision and tactile sensing for complex environment perception.
    • Demonstrated a significant reduction in localization errors by an average of 29.14% in narrow and dim scenes.
    • Successfully implemented vision-tactile fusion perception on a miniature biomimetic robot through physical experiments.

    Conclusions:

    • The proposed visual-tactile fusion system significantly improves the environmental perception and localization capabilities of biomimetic robots.
    • This pioneering implementation on a miniature biomimetic robot offers a new paradigm for robotic sensing.
    • The system shows promising results for navigation and exploration in challenging, unstructured environments.