[Eeglablist] Removing EOG artefact using ICA and converting back to EEG channels

[Arnaud Delorme]

You may also use menu item "Tools > Remove components" to remove 
artifact components from your data. See the quick tutorial on artifact 
rejection for more information.

http://www.sccn.ucsd.edu/eeglab/quickrej.html

Best,

Arno

> Hi Alexandra,
>
> If I understand your problem correctly, the only thing you have to do 
> is to overwrite with zeros that component which you would like to 
> discard. After this you can make the inverse transformation.
>
> Miklos
>
> -- 
> Miklos Argyelan MD, MSc
>
> SUNY Downstate Medical Center
> 450 Clarkson Ave, New York, NY, 11203
> tel: +1-718-270-2975
>
> On 3/2/06, *Vuckovic, Aleksandra* <vuckovic at essex.ac.uk 
> <mailto:vuckovic at essex.ac.uk>> wrote:
>
>     Hello,
>
>     I would like to remove eye movement artefacts from EEG signals. I saw
>     that ICA is very efficient in it. However I would like to work on EEG
>     data not on ICA components. I have 64 channels EEG. So when I perform
>     ICA, EOG will be one component which I can discard. However if I now
>     want to perform inverse transformation I have a problem: 63 ICA
>     components and 64 EEG channels. Does anybody have a suggestion how to
>     solve the problem? Would it help adding a dummy component of a
>     constant
>     value around 0, and then performing inverse ICA?
>
>     Thanks a lot in advance!
>
>     Aleksandra Vuckovic
>
>     _______________________________________________
>     eeglablist mailing list eeglablist at sccn.ucsd.edu
>     <mailto:eeglablist at sccn.ucsd.edu>
>     Eeglablist page: http://sccn.ucsd.edu/eeglab/eeglabmail.html
>     To unsubscribe, send an empty email to
>     eeglablist-unsubscribe at sccn.ucsd.edu
>     <mailto:eeglablist-unsubscribe at sccn.ucsd.edu>
>
>
>
>

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://sccn.ucsd.edu/pipermail/eeglablist/attachments/20060305/c60a38c9/attachment.html>