Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Visual feedback to stabilize head position for fMRI.

K R Thulborn1

  • 1Department of Radiology, MR Research Center, Presbyterian University Hospital, University of Pittsburgh Medical Center, Pennsylvania 15213-2582, USA. keith@mrctr.upmc.edu

Magnetic Resonance in Medicine
|May 20, 1999
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Comparison of Blood Oxygenation Level-Dependent fMRI and Provocative DSC Perfusion MR Imaging for Monitoring Cerebrovascular Reserve in Intracranial Chronic Cerebrovascular Disease.

AJNR. American journal of neuroradiology·2018
Same author

Hot topics in functional neuroradiology.

AJNR. American journal of neuroradiology·2013
Same author

In vivo evaluation of quantitative MR angiography in a canine carotid artery stenosis model.

AJNR. American journal of neuroradiology·2011
Same author

Dural venous sinus thrombosis in a patient with sickle cell disease: case report and literature review.

American journal of hematology·2006
Same author

Direct visualization of the human subthalamic nucleus with 3T MR imaging.

AJNR. American journal of neuroradiology·2006
Same author

Investigating the neurobiological basis of cognitive rehabilitation therapy with fMRI.

Brain injury·2004
Same journal

A Comparison of Tissue Property Values Estimated Using Conventional Cardiac MRF and MT-Cardiac MRF.

Magnetic resonance in medicine·2026
Same journal

Dependence of the Extra-Cellular Diffusion Coefficient on the Fractions of Neurites and Cell Bodies in Gray Matter.

Magnetic resonance in medicine·2026
Same journal

Triple-Pulse <sup>23</sup>Na MRI Sequence (TriNa) for Simultaneous Acquisition of Spin-Density-Weighted and Fluid-Attenuated Images.

Magnetic resonance in medicine·2026
Same journal

Evaluation of Phantom Doping Materials in Quantitative Susceptibility Mapping.

Magnetic resonance in medicine·2026
Same journal

Design of an 8-Channel Transmit 32-Channel Receive 11.7T Head Coil and Evaluation of SNR Gains.

Magnetic resonance in medicine·2026
Same journal

The Potential for Absolute Temperature Imaging Based on Brain Metabolites Using an FID-Shifting Approach in Gradient Echo Planar Spectroscopic Imaging (GREPSI).

Magnetic resonance in medicine·2026
See all related articles

A new visor system provides real-time visual feedback to reduce head motion during functional magnetic resonance imaging (fMRI) scans. This technology improves data quality without impacting cognitive workload or brain activation patterns.

Area of Science:

  • Neuroimaging
  • Functional Magnetic Resonance Imaging (fMRI)
  • Biomedical Engineering

Background:

  • Head motion is a primary source of technical failures and data artifacts in fMRI studies.
  • Existing methods for motion correction are often post-processing based and may not fully mitigate motion-induced signal changes.
  • The need for real-time, subject-driven motion correction strategies is critical for improving fMRI data integrity.

Purpose of the Study:

  • To develop and evaluate a novel visual alignment system for real-time head motion correction in fMRI.
  • To assess the system's efficacy in enabling subjects to accurately readjust head position during scanning.
  • To determine the impact of the visual alignment system on fMRI activation patterns and cognitive workload.

Main Methods:

Related Experiment Videos

  • Development of a visor-integrated sighting system providing direct visual feedback on head position.
  • Incorporation of the system into a standard commercial head coil for seamless integration.
  • Testing the system's accuracy in correcting head motion and evaluating resulting fMRI activation maps.
  • Assessment of cognitive workload associated with using the alignment system during eye movement paradigms.

    • Main Results:

    • The visual alignment system effectively allows subjects to correct head motion in real-time during fMRI acquisition.
    • fMRI activation maps generated using the device show accurate results, demonstrating successful motion correction.
    • The cognitive workload imposed by the alignment system did not significantly alter brain activation patterns relevant to the tested paradigms.

    Conclusions:

    • The developed visor-based visual alignment system is a practical and effective tool for mitigating head motion in fMRI.
    • This technology enhances the reliability and quality of fMRI data by enabling immediate subject intervention.
    • The system offers a low-cognitive-load solution for improving fMRI study outcomes without compromising neural activation measurements.