Positive with limitationsComputational finite-element comparison using an idealized four-layer spherical head model

Deep electric field focusing in temporal interference stimulation: a comparative analysis of TI-tACS and TI-TMS.

An idealized computer model suggests that temporal-interference magnetic stimulation may reach a deep target with less relative surface exposure than the electrical approach. It does not establish device safety, focality or benefit in people.

Wang Z, Wang J, Chen L, Chen Y, Yu S.
Electromagnetic Biology and Medicine · Publication date: 2026-10-01
Added to site: 2026-10-02
DOI: 10.1080/15368378.2026.2740231

Electronic publication date verified in PubMed and Crossref. This source date is separate from the site's addition date.

Original publication ↗

Modalities: tACS, TMS, Neuromodulation
Clinical focus: Temporal interference, Deep targeting, Electric-field modeling
Population: Idealized computational head model with a deep target placed at an approximate hippocampal depth
Sample: No human or animal participants; one generic scalp, skull, cerebrospinal-fluid and brain model
Intervention / method: Envelope field distributions, shallow-to-deep energy ratios and radial attenuation were compared across electrode or coil angles for TI-tACS and TI-TMS
Comparator: Current-injection TI-tACS versus electromagnetic-induction TI-TMS under a unified simulation framework

Clinician summary

TI-tACS showed stronger depth attenuation and higher superficial exposure when deep fields increased. TI-TMS produced a more uniform depth profile and higher deep-targeting efficiency relative to scalp exposure, but with broader whole-brain field distribution.

How to interpret the findings

The model used concentric spherical layers rather than individualized anatomy, and the abstract provides no experimental validation or clinical dose, tolerability or outcome data. A broader whole-brain field may limit focality. Comparative advantages therefore remain conditional on model assumptions and intended use.

Equipment and disclosures

This was a computational comparison of conceptual TI-tACS and TI-TMS configurations, not validation of a built or commercial device.

Competing-interest details were not available in the checked abstract. Crossref identifies support from the Scientific Research Development Fund of Kangda College of Nanjing Medical University.

Related evidence

Compare findings from the same clinical area, including mixed results.

Abstract checked · Checked 2026-10-02

Summary prepared with AI assistance. Source verification does not imply an independent replication or a clinician's endorsement. Read our review method.