[Eeglablist] Importing Event Markers from Biopac/Acqknowledge

Ken Bennett benne257 at uwm.edu
Tue Dec 15 12:24:43 PST 2015


I have been struggling to export event marker information from Acqknowledge
to EEGlab. In Acqknowledge, I can export the raw EEG data, but the event
markers do not show up when opened in EEGlab. The digital channels used to
capture the events are there, but only the on-and-off 5V switching of those
channels is visible. I am able to export the event marker information from
Acqknowledge into a .txt file that contains the time and label for each
event, but I do not know how to merge that information with the raw EEG
data in EEGlab. Biopac has a specific set of options available for
addressing this issue (
but I have not had success with any of them. The best option they suggest
is to write a Matlab script to parse that text and integrate it into the
raw EEG data. Is anyone familiar with this issue? Does anyone have a script
to parse the event information text?

Any help would be much appreciated!

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