mne-tools / mne-tools/mne-python

Dc_offset in non-electrophysiology channels

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Python
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Description

This came up in the discourse channel regarding Eyetracking channels, but could be relevant to any non electrophysiology channels.

The question being: should remove_dc only apply to electrophysiology channels?

I think the general feeling is yes? If so, does remove_dc serve a double purpose of mean centering traces on the plot, and will removing it cause traces for some data to go beyond the current y-axis scalings?

Cc @mscheltienne @britta-wstnr @sappelhoff

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Research direction

Start with the linked Discourse discussion about eyetracking traces and review how remove_dc affects non-electrophysiology channels in the plotting workflow. Determine whether mean centering should be limited to electrophysiology channels and verify whether changing it would make traces exceed current y-axis scalings; done means the behavior and scaling implications are resolved and documented by tests or an agreed decision.

Written by the indexing model from the issue text.

Assessment

Tech stack
python
Domain
data-visualization
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
30/100

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