bci2000.org BBS

Hi all,
I am using Net Amp 300 from EGI to acquire EEG signals.
In the meantime, I want to record EMG signals from 5 pairs of bipolar sensors connected to the amplifier.
with AmpServerPro, EEG signals can be recorded from the 128-channel sensor net.
However, the EMG signals aren't there.
Could anyone provide some advices?
Thanks a lot!

Ryan,

I do not know much about how EMG signals are interfaced with the EGI system. Are they connected to different analog inputs, i.e., separate from the sensor nets? If so, then the current BCI2000 Source Module will likely not support data acquisition from those separate channels. This should be relatively easy to do, but will require C++ programming. We do not have EGI hardware, and thus cannot write this code or test it, but we could point you to the right documentation to do it yourself.

Gerv

Hi, Gerv,
Thank you for the reply.
You are right, the EMG signals are acquired from a seperate analog port of the EGI amplifier.

This should be relatively easy to do, but will require C++ programming.

I'd like to give it a try. I really appreciate it if you could recommand some documents regarding this.

Hi Ryan,

for information about how one goes about writing a source module, please see this tutorial:
Programming_Tutorial:Implementing_a_Data_Acquisition_Module

For information how to access EMG channels from an EGI streaming client, you will need to ask EGI for documentation.

Regards,
Juergen

Hi,Juergen,

Thank you for the info.
I will give it a try.