[Eeglablist] Append External EMG channel to EEG

Cedric Cannard ccannard at protonmail.com
Sun Feb 21 22:33:05 PST 2021


Can you import your EMG data with eeglab successfully? Do the events have the same latencies?

You could try something like this:
1) import EMG data in eeglab
2) rename to store in memory:
emg_data = EEG.data; emg_event = EEG.event;
3) without clearing memory, import EEG data
4) check that event latencies correspond anencephaly correct if necessary (emg data as well if there is a delay)
5) merge by creating a 65th channel containing EMG data:
EEG.data(65,:) = emg_data;

Let me know if that works or not.


On Sun, Feb 21, 2021 at 16:43, Matteo Mascelloni <matteo.mascelloni at hdr.qut.edu.au> wrote:

> Hi all,
> I am writing to ask a (maybe) weird question.
> For my experiment I have recorded EEG signal using an EEGO system with 64 electrode and, using another computer, I have recorded an EMG signal using a different system (but same brand and software). Both the system received the same TTL trigger simultaneously. How can I add the EMG channel to the EEG dataset and sync it using the triggers?
> Thank you in advance for your help
> Matteo
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