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Vertical lines on EEG using gUSBamp [solved]
Posted: 18 Jun 2012, 18:15
by pieterkubben
Tried today connecting BCI2000 v 3.0.2 to a gUSBamp amplifier (actually 2 of them) and got the EEG as displayed on the attach. Some of the settings are visible as well.
Anyone familiar with this issue? I guess it has to do with the configuration.
Pieter
Re: Vertical lines on EEG using gUSBamp
Posted: 20 Jun 2012, 12:49
by gschalk
Do you have the same problem on individual amps?
Do you have the same problem using 256 Hz, and/or with the filters/notch turned off?
Gerv
Re: Vertical lines on EEG using gUSBamp
Posted: 20 Jun 2012, 13:00
by mellinger
You need to avoid floating inputs at the amp. Connect both positive and negative inputs of unused channels to ground.
Juergen
Re: Vertical lines on EEG using gUSBamp
Posted: 22 Jun 2012, 14:23
by pieterkubben
Okay, yesterday we had another session with different parameters, and it worked. Seems to be a configuration-related issue... fortunately.
Thanks!
Pieter