[Eeglablist] compare different electrode setups

[arno delorme]

Dear Nikolai,

yes, this is not a problem. If you are using ICA within a STUDY,  
EEGLAB will use the interpolated ICA scalp maps (at each pixel in 2- 
D). We did that so you could work with several subjects having scanned  
electrode position and take advantage of that information. If you are  
not using ICA components, EEGLAB will still average signal based on  
channel labels, but may interpolate missing channels if you have  
similar montages. By default if you have two montages, it will  
interpolate all the electrode of montage 2 in montage 1 and vice versa  
so you will be able to look at scalp map and specific electrodes in  
all subjects.

Best regards,

Arno

On 13 oct. 08, at 17:45, Nikolay Novitskiy wrote:

> Dear list,
>
> I want to compare and eventually to grand average the data recorded   
> in
> different subjects in the identical conditions, software and almost  
> the
> same hardware (from Brain Products), except that the electrodes  
> schemes
> are different. Can I extrapolate them to a virtual electrodes scheme  
> (I
> believe this is how it is done in BESA)? Or maybe other solutions?
> Thanks in advance.
>
> Yours,
> Nikolai Novitski
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