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Updated: May 8, 2026

Studying Soft-matter and Biological Systems over a Wide Length-scale from Nanometer and Micrometer Sizes at the Small-angle Neutron Diffractometer KWS-2
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Millisecond, micron precision multi-whisker detector.

Stephen K Grady1, Thanh T Hoang, Shree Hari Gautam

  • 1Department of Physics, University of Arkansas, Fayetteville, Arkansas, United States of America.

Plos One
|September 12, 2013
PubMed
Summary
This summary is machine-generated.

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Researchers developed a low-cost device to precisely measure rodent whisker motion. This tool enables simultaneous tracking of multiple whiskers, advancing our understanding of somatosensory information processing.

Area of Science:

  • Neuroscience
  • Biophysics
  • Sensory Systems

Background:

  • Understanding rodent vibrissae (whisker) function is crucial for somatosensory research.
  • Existing methods for measuring whisker motion often lack the required spatiotemporal accuracy or ability to track multiple whiskers simultaneously.
  • Investigating hypotheses on whisker mechanics and multi-whisker integration demands advanced measurement techniques.

Purpose of the Study:

  • To present a novel, cost-effective device for high-accuracy, multi-whisker motion tracking.
  • To enable simultaneous measurement of two-dimensional whisker motion in the plane perpendicular to the whiskers.
  • To provide a simpler and more affordable alternative to existing whisker tracking systems.

Main Methods:

  • The system utilizes two laser diodes and two linear cameras for motion detection.

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  • It achieves millisecond temporal precision and micron spatial resolution.
  • Automated algorithms were developed for data processing and validated against manual tracking.

    • Main Results:

    • The device accurately measures two-dimensional whisker motion with sub-10 µm deviation compared to manual tracking.
    • It successfully monitored the motion of multiple whiskers in anesthetized rats responding to air puffs.
    • The system demonstrates high spatiotemporal accuracy without altering whisker mechanics.

    Conclusions:

    • This new device offers a powerful and accessible tool for studying whisker-based sensory processing.
    • It facilitates research into the neural mechanisms underlying texture discrimination and multi-whisker integration.
    • The system's cost-effectiveness and ease of construction promote wider adoption in neuroscience labs.