Controlled noninvasive modulation of deep brain regions in humans

Abstract Transcranial focused ultrasound provides noninvasive and reversible approaches for precise and personalized manipulations of brain circuits, with the potential to transform our understanding of brain function and treatments of brain dysfunction. However, effective applications in humans hav...

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Main Authors: Thomas Riis, Daniel Feldman, Brian Mickey, Jan Kubanek
Format: Article
Language:English
Published: Nature Portfolio 2024-01-01
Series:Communications Engineering
Online Access:https://doi.org/10.1038/s44172-023-00146-4
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author Thomas Riis
Daniel Feldman
Brian Mickey
Jan Kubanek
author_facet Thomas Riis
Daniel Feldman
Brian Mickey
Jan Kubanek
author_sort Thomas Riis
collection DOAJ
description Abstract Transcranial focused ultrasound provides noninvasive and reversible approaches for precise and personalized manipulations of brain circuits, with the potential to transform our understanding of brain function and treatments of brain dysfunction. However, effective applications in humans have been limited by the human head, which attenuates and distorts ultrasound severely and unpredictably. This has led to uncertain ultrasound intensities delivered into the brain. Here, we address this lingering barrier using a direct measurement approach that can be repeatedly applied to the human brain. The approach uses an ultrasonic scan of the head to measure and compensate for the attenuation of the ultrasound by all obstacles within the ultrasound path. No other imaging modality is required and the method is parameter-free and personalized to each subject. The approach accurately restores operators’ intended intensities inside ex-vivo human skulls. Moreover, the approach is critical for effective modulation of deep brain regions in humans. When applied, the approach modulates fMRI Blood Oxygen Level Dependent (BOLD) activity in disease-relevant deep brain regions. This tool unlocks the potential of emerging approaches based on low-intensity ultrasound for controlled manipulations of neural circuits in humans.
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spelling doaj.art-1ffc2a22dad84431aef0e43b6824b0292024-01-14T12:25:02ZengNature PortfolioCommunications Engineering2731-33952024-01-013111210.1038/s44172-023-00146-4Controlled noninvasive modulation of deep brain regions in humansThomas Riis0Daniel Feldman1Brian Mickey2Jan Kubanek3Department of Biomedical Engineering, University of UtahDepartment of Psychiatry, University of UtahDepartment of Biomedical Engineering, University of UtahDepartment of Biomedical Engineering, University of UtahAbstract Transcranial focused ultrasound provides noninvasive and reversible approaches for precise and personalized manipulations of brain circuits, with the potential to transform our understanding of brain function and treatments of brain dysfunction. However, effective applications in humans have been limited by the human head, which attenuates and distorts ultrasound severely and unpredictably. This has led to uncertain ultrasound intensities delivered into the brain. Here, we address this lingering barrier using a direct measurement approach that can be repeatedly applied to the human brain. The approach uses an ultrasonic scan of the head to measure and compensate for the attenuation of the ultrasound by all obstacles within the ultrasound path. No other imaging modality is required and the method is parameter-free and personalized to each subject. The approach accurately restores operators’ intended intensities inside ex-vivo human skulls. Moreover, the approach is critical for effective modulation of deep brain regions in humans. When applied, the approach modulates fMRI Blood Oxygen Level Dependent (BOLD) activity in disease-relevant deep brain regions. This tool unlocks the potential of emerging approaches based on low-intensity ultrasound for controlled manipulations of neural circuits in humans.https://doi.org/10.1038/s44172-023-00146-4
spellingShingle Thomas Riis
Daniel Feldman
Brian Mickey
Jan Kubanek
Controlled noninvasive modulation of deep brain regions in humans
Communications Engineering
title Controlled noninvasive modulation of deep brain regions in humans
title_full Controlled noninvasive modulation of deep brain regions in humans
title_fullStr Controlled noninvasive modulation of deep brain regions in humans
title_full_unstemmed Controlled noninvasive modulation of deep brain regions in humans
title_short Controlled noninvasive modulation of deep brain regions in humans
title_sort controlled noninvasive modulation of deep brain regions in humans
url https://doi.org/10.1038/s44172-023-00146-4
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