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Related Experiment Video

Updated: May 25, 2026

Functional Magnetic Resonance Spectroscopy at 7 T in the Rat Barrel Cortex During Whisker Activation
09:26

Functional Magnetic Resonance Spectroscopy at 7 T in the Rat Barrel Cortex During Whisker Activation

Published on: February 8, 2019

A MRI-compatible system for whisker stimulation.

Limin Li1, Craig Weiss, Andrew C Talk

  • 1Center for Basic MR Research, NorthShore University HealthSystem Research Institute, Evanston, IL 60201, USA. LLi@northshore.org

Journal of Neuroscience Methods
|February 11, 2012
PubMed
Summary
This summary is machine-generated.

We developed a novel whisker stimulation system for high-field magnetic resonance imaging (MRI) studies. This system enables precise, synchronized whisker vibration during functional MRI (fMRI) experiments without subject removal.

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Related Experiment Videos

Last Updated: May 25, 2026

Functional Magnetic Resonance Spectroscopy at 7 T in the Rat Barrel Cortex During Whisker Activation
09:26

Functional Magnetic Resonance Spectroscopy at 7 T in the Rat Barrel Cortex During Whisker Activation

Published on: February 8, 2019

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Whole-Brain 3D Activation and Functional Connectivity Mapping in Mice using Transcranial Functional Ultrasound Imaging

Published on: February 24, 2021

Area of Science:

  • Neuroscience
  • Biomedical Engineering
  • Imaging Science

Background:

  • Functional magnetic resonance imaging (fMRI) is a powerful tool for studying brain activity.
  • Investigating sensory processing, such as tactile information from whiskers, requires precise stimulation methods compatible with MRI environments.

Purpose of the Study:

  • To develop and validate a novel whisker stimulation system for use in high-field magnetic resonance imaging (MRI) environments.
  • To enable controlled and reproducible whisker stimulation for functional MRI (fMRI) studies in animals.

Main Methods:

  • The system utilizes real-time optical monitoring to control whisker vibration.
  • It allows for selective stimulation of whiskers on either or both sides of the head.
  • Precise synchronization between whisker vibration and fMRI acquisition is achieved via a user-friendly computer interface.

Main Results:

  • The system generates well-controlled and reproducible whisker deflections with amplitudes up to 2mm and frequencies up to 75 Hz.
  • Stimulation can be performed selectively during fMRI experiments without removing the subject from the MRI scanner.
  • The system allows for convenient control of whisker vibration and MR imager gating.

Conclusions:

  • This novel whisker stimulation system is suitable for animal fMRI studies.
  • It facilitates investigations into the neural systems processing whisker-mediated sensory information.
  • The system's precise control and synchronization capabilities enhance the reliability of fMRI studies.