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Updated: May 6, 2026

Deep Brain Stimulation with Simultaneous fMRI in Rodents

Deep Brain Stimulation with Simultaneous fMRI in Rodents

Published on: February 15, 2014

Population-level insights into temporal interference for focused deep brain neuromodulation.

Kanata Yatsuda¹, Wenwei Yu², Jose Gomez-Tames²

¹Department of Medical Engineering, Graduate School of Engineering, Chiba University, Chiba, Japan.

Frontiers in Human Neuroscience

|May 6, 2024

Summary

This summary is machine-generated.

Temporal interference (TI) stimulation offers focused deep brain targeting for neurological disorders. Group-level analysis reveals consistent deep brain modulation but variable focality across populations, informing montage selection.

Keywords:

brain stimulation deep brain electric field group-level transcranial alternating current stimulation transcranial temporal interference stimulation

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Area of Science:

Neuroscience
Biomedical Engineering
Computational Modeling

Background:

Focal deep brain stimulation is crucial for treating neurological disorders.
Temporal interference (TI) stimulation enables focused deep brain targeting.
Individualized head models personalize TI but face variability and accessibility challenges.

Purpose of the Study:

Investigate the population-level effectiveness of TI for deep brain stimulation.
Analyze the trade-offs between deep and cortical stimulation across different populations.
Compare group-level TI with transcranial alternating current stimulation (tACS).

Main Methods:

Utilized group-level analysis of electric fields generated by TI stimulation.
Applied consistent TI montages across diverse populations.
Registered individual electric fields into brain templates for population-level insights.
Compared focality and variability of TI with tACS.

Main Results:

A consistent modulated electric field was observed in deep brain targets across populations using the same TI montage.
TI stimulation demonstrated a target-dependent trade-off between deep stimulation and cortical neuromodulation.
Group-level TI showed greater focality than tACS, reducing cortical neuromodulation volume by at least 1.5 times.
Variability in focality and performance was noted when using the same montage across populations.

Conclusions:

Population-level insights are valuable for selecting TI montages.
TI stimulation offers a promising approach for focal deep brain neuromodulation with reduced cortical side effects.
Further research is needed to optimize TI montages for consistent focality and minimal variability across diverse populations.