[Eeglablist] how to add markers in continuous EEG data

[Lue, James C.]

Hi Humera,

I think the way that event markers are associated with EEG data will vary depending on the type of system one uses. My lab uses EGI Geodesic sensor nets. Net Station produces a .mff file, which is like a .zip file. Inside, in addition to the recording, is an .xml file for user-initiated event markers.

There were times I had to edit this file to add event markers that were inadvertently missed during the session. Having said that, I've never actually created one from scratch in the case where no event markers were pressed at all. You might want to look at one of your older recordings that have event markers to get an idea of how the event file is formatted.

James Lue
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From: eeglablist <eeglablist-bounces at sccn.ucsd.edu> on behalf of Humera Sharif via eeglablist <eeglablist at sccn.ucsd.edu>
Sent: Saturday, June 17, 2023 6:19 AM
To: eeglablist at sccn.ucsd.edu <eeglablist at sccn.ucsd.edu>
Subject: [Eeglablist] how to add markers in continuous EEG data

Hi,

I have collected continuous EEG data. For some reason, I could not add
stimulus markers to it. Could anyone help me how to add markers afterwards
in my data?

Thanks in advance!

Best regards
Humera Sharif
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