[FieldTrip] Question about importing NWB files into fieldtrip

Schoffelen, J.M. (Jan Mathijs) janmathijs.schoffelen at donders.ru.nl
Thu May 5 10:53:09 CEST 2022

Hi April,

Given that the error message is quite specific, I suspect that there’s something in your data (missing) that is unexpected by the file reading function. Perhaps the folks that implemented the NWB format in FT can comment on this, I am not familiar with the data format.

Best wishes,

On 4 May 2022, at 21:30, April Luo via fieldtrip <fieldtrip at science.ru.nl<mailto:fieldtrip at science.ru.nl>> wrote:


I'm trying to import NWB files using fieldtrip functions. I followed the tutorial here: https://www.fieldtriptoolbox.or<https://urldefense.com/v3/__https://www.fieldtriptoolbox.or__;!!HJOPV4FYYWzcc1jazlU!45QYn3a-bH4hG7LIgMnz7VD2VzCMpg3joXJ4I9jXoh8QEpg94hUOgTB1GRXa6jQpBllJUcDchSYhN8shl1zulAiFWycskVjSKBDlmA$>g/getting_started/nwb/. But when I get to 'hdr = ft_read_header(nwbFile);' It gives an error that no lfp data can be found. The dataset I'm using is an sEEG recording while participants speak words, does fieldtrip NWB not support sEEG data? I could also use python to get sEEG data and channel info, save as csv, then import into fieldtrip format, is there any tutorial for importing data as csv files? Except sEEG data and channel info, do I need to provide other information?

Thank you,
April Luo
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