Bad EEG signal with the Ganglion and not with Cython!?

Hi,

I'm trying some alpha detection with the new ganglion and impossible to have a clear eeg signal and I don't understand why!? I think I have a bad reference, but I'm doing all the same with the ganglion and the cython and it's working well on cython…

I'm on mac, and I tested with two different mac and two diffrent Ganglion with the same bad noise…

Here the signal I record with the ganglion…
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And here the same setup, the same programme, the same electrode, the same place with Cython…
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The electrodes
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My ganglion Setup / D_G left ear Chan 2 - right ear Chan 2 + O1
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My futon setup / BIAS left ear Chan 2 - right ear Chan 2 + O1
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thx for your help!!!
Gille

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