Brain Imaging Data Structure

If you are using UnfoldBIDS we assume you are already familiar with the BIDS format. However, since the package only works if your dataset is BIDS formatted, here is a quick reminder. If you want a more in-depth explanation, please refer to the official BIDS documentation

Folder Structure

Folders have to follow the following structure:

  |-BIDS-Root/
      |--- [required meta files]
      |--- sub-<label>/
          |--- eeg/
              |--- sub-<label>[_ses-<label>]_task-<label>[_acq-<label>][_run-<index>]_eeg.<extension>
              |--- sub-<label>[_ses-<label>]_task-<label>[_acq-<label>][_run-<index>]_eeg.json
              |--- sub-<label>[_ses-<label>]_task-<label>[_acq-<label>][_run-<index>]_events.json
              |--- sub-<label>[_ses-<label>]_task-<label>[_acq-<label>][_run-<index>]_events.tsv
      |--- derivatives/ <- for (pre-processed data)
         |--- [required meta files]
         |--- sub-<label>/
              |--- eeg/
                  |--- sub-<label>[_ses-<label>]_task-<label>[_acq-<label>][_run-<index>]_eeg.<extension>
                  |--- sub-<label>[_ses-<label>]_task-<label>[_acq-<label>][_run-<index>]_eeg.json
                  |--- sub-<label>[_ses-<label>]_task-<label>[_acq-<label>][_run-<index>]_events.json
                  |--- sub-<label>[_ses-<label>]_task-<label>[_acq-<label>][_run-<index>]_events.tsv

File formats

By BIDS standard your files have to be in one of the following formats: EEG

• edf (European Data Fromat; single file)
• vhdr (BrainVision format; file triplet of .vhdr, .vmrk and .eeg)
• set (EEGLAB saved file; .fdt file optional)
• fif (MNE save file; not BIDS conform, but implemented for convenience)

Events UnfoldBIDS.jl will automatically try to load accompanying events.tsv files. Loading events from the EEG data files is currently not supported, and not BIDS conform.

BIDS Transformation

If your dataset is not yet BIDS conform you can use MNE-BIDS to transform your data.

This page was generated using Literate.jl.