[Eeglablist] Heart Rate (ECG) removal

[Joseph Dien]

I’ve been working on upgrading the MAAC artifact correction routine in my EP Toolkit.  If you send me some test files, I could give a go at implementing something.

Joe

> On May 14, 2020, at 19:41, Bruzadin Nunes, Ugo <ugob at siu.edu> wrote:
> 
> Hello eeglab community,
> 
> I have been having trouble removing ECG/EKG from my datasets. At the INL lab, we noticed that even after thorough automatic ICA/PCA/ICLabel/BSS/CORRMAP and epoch rejection loops, there is still a lot of ECG bleeding in many "good" components. We could do it by visual inspection, but even then a lot of our ECG have left-over pieces spread through many components, making it almost impossible to remove it.
> 
> We use a lot of IClabel (default or beta), but it has been missing a lot of ECG or misidentifying them as brain.
> MARA also isn't performing very well on our dataset, it's removing a lot of untouchable components (decreasing alpha by significant amount of power).
> We also noticed that Cleanline may have been introducing errors in our data so we decided to avoid that altogether.
> 
> I have been thinking about how to solve this problem and decided to ask for help.
> 
> I considered many alternatives and wanted to know what are my other options. I thought about:
> A. creating a algorithmic-generated heart-rate depending on the persons' EEG, and using it to drive ICAs to a more robust heart-rate component.
> B. getting template with a good component ECG and cleaning it up (filtering & BSS) then using it for a later CORRMAP.
> C. identifying the components with left-over ECG, cluster them, them and running a BSS-type algorithm to separate the ECG from the data.
> 
> However, these are very tasking ideas. What are the other alternatives that I missed out?
> 
> Any help is welcome!
> 
> Thanks in advance,
> 
> Ugo Bruzadin Nunes, PhD Candidate
> PSYC 222 Lecturer - Effects of Recreational Drugs
> Integrative Neuroscience Lab - Member
> Brain and Cognitive Sciences Ph.D Program ||
> School of Psychological and Behavioral Sciences
> Southern Illinois University - Carbondale
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--------------------------------------------------------------------------------

Joseph Dien, PhD
Senior Research Scientist
Department of Human Development and Quantitative Methodology
University of Maryland, College Park
https://urldefense.com/v3/__http://joedien.com__;!!Mih3wA!UVc46mI8TGaTsQhBc9XnJRK7SCCrG_HHldrrgRQc10Fg_bJt8Z4EMMY7El1pDBjLvox1ZA$