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. 2018 Oct 30;8:15985. doi: 10.1038/s41598-018-33808-x

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© The Author(s) 2018

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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Static magnetic fields reduce the intensity and frequency of spontaneous seizures in the anaesthetized primate. (A) Spontaneous activity recorded in the monkey visual cortex in control (black) and with the magnet (grey) during non-seizure periods (400 seconds per recording). Note in the expanded traces the appearance of epileptic spikes (arrows). (B) Bar histogram representing Spike amplitude and frequency in control and after Magnet application. (C) Three different raw spontaneous traces that show the appearance of epileptiform activity under control conditions (3 seizures in 1 hour). (D) Recording fragment that shows the only epileptiform spontaneous activity recorded in the next hour once the magnet was placed close to the recording electrode.