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MEG artifacts: metal belt buckle

March 25, 2026

artefacts in MEG: here, the participant forgot to remove a belt with a metal buckle. the buckle moves when breathing, introducing low frequency artefacts. taking off the belt solves resolves this. 🙂

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— Natalie Schaworonkow (@nschawor.bsky.social) 25 March 2026 at 15:25

Tags: artifacts, meg

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MEG artifacts: railway traction power

April 10, 2026

more MEG artefacts: the tram runs in ~200 meter distance from the MEG lab here. even though the MEG sensors are shielded by a few tons of metal, they still pick up the railway traction power signal (at 16.67 Hz in Germany), a demo of their high sensitivity.

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— Natalie Schaworonkow (@nschawor.bsky.social) 10 April 2026 at 15:05

impact of crosstalk in MEG/EEG

May 16, 2024

MEG/EEG: "we use source reconstruction" – all problems solved?

plotted here: crosstalk – possible contribution from other locations to reconstructed activity @ red dot. no strong activity at these locations: 👍 otherwise: 🫠
➡️crosstalk can be from distant locations pic.twitter.com/FetHqq5LoZ

— Natalie Schaworonkow (@nschawor) May 16, 2024

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© 2026 Natalie Schaworonkow. Adapted from Jekyll & AcademicPages, a fork of Minimal Mistakes.