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Step 2: Prepare data conversion

For successful data conversion to the BIDS format some requirements are put on the data:

  • Prepare your eeg_metadata.csv file. This file contains additional information such as montage, information about non-EEG data channels and information about the recording hardware and software. Download the file, fill in the required information.

Note

This file only contains information that applied to all of the subjects.

Instructions for the eeg_metadata.csv file:

  1. Non-EEG Data Channels

Fill in the Value column with the appropriate names for any non-EEG data channels used in the study.

Examples:

  • ecg: Specify the ECG channel names (e.g., ECG1, ECG2).
  • eog: Specify the EOG channel names (e.g., EOG1, EOG2).
  • resp: Specify the respiratory channel name (e.g., RESP).
  • stim: Specify the stimulus channel name (e.g., MARKER).
  1. Montage

Provide the montage name (e.g., standard_1020). Below you can find a list of all available montages:

Montage Name
standard_1005
standard_1020
standard_alphabetic
standard_postfixed
standard_prefixed
standard_primed
biosemi16
biosemi32
biosemi64
biosemi128
biosemi160
biosemi256
easycap-M1
easycap-M10
easycap-M43
EGI_256
GSN-HydroCel-32
GSN-HydroCel-64_1.0
GSN-HydroCel-65_1.0
GSN-HydroCel-128
GSN-HydroCel-129
GSN-HydroCel-256
GSN-HydroCel-257
mgh60
mgh70
artinis-octamon
artinis-brite23
brainproducts-RNP-BA-128

Note

If none of the above provided montages fit your setup, please contact a data steward.

  1. Study and Setup Metadata

Provide additional information about the study and setup under the Value column for required fields.

For optional fields (e.g., Manufacturer, EpochLength), add details if available.

  1. Leave Unused Channels Blank

For data types or channels not used in your study, leave the corresponding Value field blank or delete the line.

  • Example completion:
Variable Value State
montage standard_1020 required
ecg ECG1 required if used
ecg ECG2 required if used
ecog required if used
emg EMG1 required if used
resp RESP required if used
stim MARKER required if used
EEGGround GND required
EEGReference REF required
EpochLength 2.0 optional
Manufacturer BrainVision optional