Error with channel locations using BIDS dataset

[neuro-sevas]

Hello,

I'm trying to run through PREP using a BIDS validated dataset but running into the following error:

Project settings:

Configuration settings:

Prep configuration settings: (1:62 because channels 63 and 64 are non-EEG channels)

What I've tried so far:

• Using besa channel locations file
• Using .ced channel locations file (this created more issues where new projects generated using this results in an empty project folder with just a 'project_state.mat' but no participant folders and I can see in the command window it doesn't go through and find the files like it does when using the besa file).
• Importing dataset & applying channel locations (using the besa file) directly through eeglab (2022.0) to check if it's an EEGLab bug
• Tried selecting 'non-scalp reference', this generates the same error

Other useful information:

• I'm using the development version of Automagic
• The reference electrode is specified in the eeg json file
• The reference electrode is not listed in the channels tsv file or the EEG files themselves

Any help would be greatly appreciated!

Thanks so much :)

Steff

[ksgfan]

Hi Steff,

do you also have a .tsv file with channel locations? If yes, you don't need to add besa or elp files. Automagic will use the pop_importbids internally and import the channel information from .tsv file. If no, deselect the Is BIDS format?, and add the besa or elp channel location file. For more see: wiki

Anyway, I think the best (and fastest) option will be, if you just send me a dropbox link to a folder with data of 1 subject and write me the desired preprocessing params. I will make it work.

Best, Dawid