[Eeglablist] Questions on Channel Lock for Bipolar montage and PCA

[Efthymios Papatzikis]

Dear colleagues, 

I am using EEGLab to preprocess EEG data recorded in the NICU on premature infants (30-32 weeks PMA). 

My recording montage is bipolar, but unfortunately the unit software exports the data in unipolar montage. I managed to re-reference my data in EEGLab creating a custom made MatLab script. So far so good. 

My question is this: How can I insert channel locations in this bipolar montage? Have you ever managed to do it? 

When I load location on the unipolar montage and then run the bipolar montage script, all locations are lost. 

Also, is there anyone who can suggest a good way to run PCA in my datasets? 

I use EEGLab v.2023.1.

Thank you all in advance, 

Best, 
Timos

Dr. Efthymios (Timos) Papatzikis QTS, FHEA
Dip.Mus, BMEd, MMus, PhD in Music Psychology, Prof.Cert.Ed., Cert.Neuro.
- Associate Professor of Infant Brain Development, Department of Early Childhood Education and Care, Oslo Metropolitan University, Norway
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