2026-07-10 00:00 China Papers Foundations & Methods Translated from EN

Nuclear Electromagnetic Pulse Inhibits Rat Primary Motor Cortex LFP Bands

Summary A study examining the potential brain risk of BCI electrodes exposed to strong electromagnetic fields applied nuclear electromagnetic pulse (NEMP) irradiation to rats with implanted brain electrodes and recorded local field potentials (LFPs) in the primary motor cortex (M1). At 200 kV/m, NEMP inhibited the alpha and delta LFP bands in resting rats, an effect linked to front-gate coupling between the pulse and the electrode, with the coupled current stimulating the brain and affecting its state of consciousness; the authors frame the work as early animal data for BCI electromagnetic protection.

Why it matters Electromagnetic safety is an under-studied risk for implanted BCIs in high-field environments, and this early animal data on how NEMP affects cortical activity gives the field its first reference point for electromagnetic protection.

This study, published in Journal of Physics: Conference Series, investigated the potential risk to the brain when a BCI electrode is exposed to a strong electromagnetic environment: rats implanted with brain electrodes were irradiated with a nuclear electromagnetic pulse (NEMP), and local field potentials (LFPs) of the primary motor cortex (M1) were recorded.

Results showed that 200 kV/m NEMP could inhibit the alpha and delta bands of LFPs in rats at resting state, related to front-door coupling between the NEMP and the electrode; the coupled current stimulated the rat brain and affected its conscious state, providing a new direction for electromagnetic protection research of BCIs. DOI 10.1088/1742-6596/3268/1/012018

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doi.org 2026-07-10

Nanjing University of Science and Technology Intracortical Electrodes China

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