mne_eximia2fiff: digitizer data ordering

✉️ Mailing List Archive (read-only)
1

Hi,

I am using the function mne_eximia2fiff with the '--dig' option containing the digitizer data. My EEG data is measured with the Nexstim eXimia system.

Example:
mne_eximia2fiff --dig <digitizer_data>.nbe <eeg_data>.nxe

Do the EEG channels have to be digitized in the numerical order (from channel 1 to channel 60), or does the function correct the electrode ordering if the digitization was done in a 'random' order, for example, if channel 35 was digitized last? If the numerical ordering is required then I just need to change the electrode ordering manually, which takes a while.

Thank you!

Best regards,
Niko M?kel?

2

Hi Niko,

It looks like the electrode numbers are taken from the Eximia digitization file (see the mne_eximia2fiff script). You can confirm this by creating an EEG layout file for mne_browse_raw using mne_make_eeg_layout, and seeing where the channels end up.

- Matti