Thank you very much Francois
If you still have the Brainstorm database, you should be able to simply change the list of ICA components removed from the recordings. Double-click on the
Link to raw file, then menuArtifacts > Select active projectorsin the Record tab.
Then you'll need to delete the imported epochs and all the files derived from them, and import/compute everything again. How old is "old"?
I performed the ICA process a few years ago, using EEGLAB probably (I don't remember...). Thus I think it will be impossible to re-select the ICA components to discard. Thus, should I perform again the ICA process (taking the signals before the old ICA) rather than add another layer of ICA?
I'm not sure I understand your questions.
Each channel has a name (e.g. 'vEOG') and a type (e.g. 'EOG').
In many processes, you can select data channels either by typing their names or their types.
Some processes only accept one channel in input (e.g. the processes that detect events on a single channel), in that case only the name can be used.The introduction tutorials show how to manage a dataset with two EOG channels (VEOG, HEOG):
https://neuroimage.usc.edu/brainstorm/Tutorials/ArtifactsDetect#Detection:_Blinks
Sorry, maybe I posed this question confusingly. I meant that if it is relevant the specific type of the EOG sensor (vEOG/hEOG/right/left). For example, in the link you share it use VEOG to detect the blink components. Is it possible to use HEOG? It is relevant to select a right or left EOG channel? Is there any way to combine them all to improve the detection?
Thank you again Francois!!