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detrended fluctuation analysis and 1/f-exponents

Published: January 30, 2021

when fitting a regression on these values (log window length vs log fluctuation function), the slope yields the DFA exponent α, quantifying the degree of temporal correlations present. for white noise α=0.5, for brownian noise α=1.5. 🌟tutorial: https://t.co/weEmz27R9G pic.twitter.com/MmNUd1MDlT

— Natalie Schaworonkow (@nschawor) January 30, 2021

Tags: algorithm, lrtc, signal-processing, simulation

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Bluesky for neuroscientists

Published: April 19, 2026

I created a few custom feeds for Bluesky based on regular expressions. If a post matches certain patterns, it will get added to the feed (so the occasional stray post appears also). Current feeds include:

  • neuroscience training courses for summer courses and workshops
  • job feed based on keywords: cog/neuro jobs
  • brain rhythms fetching posts about neural oscillations.

Also I played around with building a Bluesky labeler for neuroscience methods. Subscribe to: neuromethods.bsky.social and like the corresponding post to have a shiny methods label appear in your profile. People with specific method labels will be automatically added to method-specific starter packs, e.g. here is the EEG starter pack.

MEG artifacts: railway traction power

Published: 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.

[image or embed]

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

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