Electrode setup for Amplification

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Muhsin
Posts: 6
Joined: 28 Aug 2010, 07:18

Electrode setup for Amplification

Post by Muhsin » 17 Oct 2010, 05:19

Hi
I am using differential amplifier for EEG signals. If I use electrode C4 for the +ve input of amplifier then what should be the -ve input?, CP4 or anything else ?


Muhsin

gschalk
Posts: 615
Joined: 28 Jan 2003, 12:37

bipolar

Post by gschalk » 19 Oct 2010, 07:21

I would use the ear lobe. You could also use P4. I would not use CP4. This is a little too close. THere are many papers that used different bipolar montages. You can check them out, but these two suggestions should be a good start.

Gerv

Muhsin
Posts: 6
Joined: 28 Aug 2010, 07:18

Re: bipolar

Post by Muhsin » 19 Oct 2010, 14:28

Thanks for your reply.
I am working on a BCI based on Motor Imagery. I have found bipolar montages for left-right imagery as: C3-CP3, C4-CP4 and Cz-CPz. But as you suggested not to use much closer locations (i.e C4-CP4).
Would you suggest me the optimal electrode locations for motor imagery detection?

Thanks in advance.


Muhsin

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