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finding:spectral-decoder-reveals-band-restoration-as-a-frequency-signature-of-concept-steering-interventions-in-eeg-foundation-models

Spectral decoder reveals α-band restoration as a frequency signature of concept steering interventions in EEG foundation models.

Links latent space manipulation to known EEG neurophysiology

Source paper

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Mechanistic Interpretability of EEG Foundation Models via Sparse Autoencoders

(2026) · William Lehn-Schiøler · Magnus Ruud Kjær · Rahul Thapa · M. Pedersen +9

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Claims (1)

claim

The spectral decoder successfully translates latent SAE interventions into physiologically interpretable frequency signatures such as slow-wave suppression and α-band restoration.
supports
Key result linking abstract latent manipulations to known EEG neurophysiology

Questions (1)

question

What physiologically interpretable frequency signatures correspond to latent concept steering manipulations in EEG foundation models?
answered_by
Research question motivating the spectral decoder methodology

Related by similarity (8)

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Spectral decoder maps concept interventions to pathological slow-wave suppression and alpha-band restoration.finding0.894
Physiological interpretability result linking latent steering to EEG frequency signatures.
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Links latent space manipulation to known EEG neurophysiology
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Claim that the spectral decoder adds physiological interpretability.
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Interpretive claim summarizing the spectrum of concept steerability discovered.
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