Timing for referencing EEG preprocessing

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Helen Tobback 2023-9-14

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https://ww2.mathworks.cn/matlabcentral/answers/2020826-timing-for-referencing-eeg-preprocessing

编辑： Walter Roberson 2024-11-23

Dear community,

I am in the middle of writing all scripts for the preprocessing, ICA, epoching and analysis of my EEG data, using eeglab/matlab.

According to Lucks pipeline (which I am basing myself on; Applied Event related potential data analysis, 2022) we shouldn't reference the data at the start (when importing the data), but rather after filtering or, in case of referencing to an average of mastoids, after ICA. I was wondering if anyone knew the rationale behind this idea and whether this is significantly changing anything or not. Thanks in advance!

Kind regards

Helen Tobback

PhD student VUB, Belgium

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Answer 1

Taylor 2023-11-2

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https://ww2.mathworks.cn/matlabcentral/answers/2020826-timing-for-referencing-eeg-preprocessing#answer_1345576

编辑：Walter Roberson 2024-11-23

Here is a detailed explanation on the biological/electronics theory behind referencing for EEG.

https://eeglab.org/tutorials/ConceptsGuide/rereferencing_background.html

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Aboltabol 2024-11-23

Absolutely unhelpful; the OP is concerned about what, if any, guides the order of two pre-processing operations in EEG preprocessing: filtering and re-referencing. However, in fairness, this forum is not the proper place for the question.

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Timing for referencing EEG preprocessing

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