Dear Elizabeth,

You have different ways to export your (Analyzer) pre-processed data into FiledTrip by:

Option 1. Export > EDF. This option converts your current analyzer files  into a .edf file.

Option 2. Export > Generic data.

Option 3. Transformations  > Others > Matlab > Export data in EEGlab format. 

I really prefer the 1 and 3 options because once you have your data in an eeglab format (.set), you can do a lot of analysis with them and export them into matlab, fiedltrip as they share several functionality.

Best,

Javier

Dear Filipa and Javier

Thank you for your very helpful answers. I hadn't explored the generic data export function in BVA properly, so it's great to know I can do this. 

Many thanks

Lizzie

Dear Elizabeth, I usually go from preprocessed data in BV to fieldtrip without using EEG lab.

I export my BV epochs with GenericData Export as a .eeg, together with a new header and marker file. Now in Fieldtrip just use  the function ft_definetrial as usual, but add cfg.headerfile which is your BV file. 

Hope this is useful.

Mimma

Hi Mimma

Thank you - that is really helpful! 

Best wishes

Lizzie

Hi Elizabeth, 

Did one of the options above work for you? I've been trying to export preprocessed and segmented data from BV to FieldTrip but none of these work for me. Can I ask what you ended up doing?

Thanks,

Anat.  

Hi Javier! 

I am trying the third option you mentioned through EEGLab, with the events already segmented. I create a new fieldtrip data structure, but the ft functions still miss the cfg.headerfile and cfg.datafile, do you know can I solve this problem?

Thank you!

Beatriz.

Anat, sorry for the very slow reply! I assume you have an answer now but just in case not, I export the data from BVA using generic data export, and then read the .eeg file into FieldTrip.

Hello Dr. Shephard,

I am having the same question as you had three years ago - I use the generic data export function in BVA2 to export averaged data for each subject, and I could not find a way to make Fieldtrip read the exported data properly. I tried to use ft_definetrial but it keeps warning me that the resolution is unknown for the recording units. Have you encountered the same situation before? Thank you very much.