Missing events with .easy or .nedf files

Discussions
1

Hi François,

Happy new year!

I am still working on EEG data and I have an issue when I import my raw data.

My EEG data were saved with .easy and .nedf extensions since i'm using Neuroelectrics file.
To review raw file, I use "EEG: ASCII text (.)" option because there is no option for .easy file.

This step works, but the data doesn't contain any event. I checked my data with the NIC software and I have all my events. I also imported the same .easy file on EEGLAB and I have the events.

Could you help me with this issue, I would like to keep working on Brainstorm for my patients' data since I did all the analysis for the control group on Brainstorm also. :slight_smile:

Thank you!
Best, Thomas

2

Hi Thomas,

If there is an EEGLAB plugin for reading this file format, we should be able to add it to Brainstorm as well.
Could you please share a short example file?
(zip together all the files for a short recording session, upload it somewhere and post the download link here)

Thanks

3

Hi François,

Thank you for your answer.
Here is the link with an exemple of data with markers: https://we.tl/t-C23qyF5GoA

You will find 3 files:

  • The .easy file contains all the data with the markers
  • The .nedf file is almost the same, but it is a binary file readable only the Neuroelectric software.
  • The .info file contains all the informations concerning the recording.

Here is a short website of NE with specific informations: Files & Formats - Neuroelectric's Wiki: https://www.neuroelectrics.com/wiki/index.php/Files_%26_Formats

Thanks

4

I have added the EEGLAB plugin as a Brainstorm plugin, and added the file format "EEG: Neuroelectrics (*.nedf; *.easy)" as a new file format in the Brainstorm interface.

Please update Brainstorm and linking the recordings to the database (Review raw file).
You have access to the Accelerometer values with a right-click on the data file.

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5

Thank you François!

I will give you feedbacks in case of bugs.