[Eeglablist] Ocular artifacts

[Germán Gómez-Herrero]

Hi Ennio,
A possibility is to use the standard ICA decomposition tools included in
EEGLAB and reject those independent components that contain mainly ocular
activity. You can go to
http://www.sccn.ucsd.edu/eeglab/rejtut/tutorialreject.html#3  to see the
basic steps that you should follow.

An alternative is to use an EEGLAB plugin that I implemented some time ago
and that is still unfinished but already contains the basic functionality.
You can find more information here:  http://www.cs.tut.fi/~gomezher/software
under the entry AAR toolbox. The access is restricted but if you are
interested you can contact me by e-mail and I will give you access. The
toolbox includes an automatic method for removal of ocular artifacts that
does not require the availability of EOG channels. The article describing
the procedure is:

Gómez-Herrero, G., De Clercq, W., Anwar, H., Kara, O., Egiazarian, K., Van
Huffel, S., and Van Paesschen, W., Automatic removal of ocular artifacts in
the EEG without a reference EOG channel, Proceedings of the 7th Nordic
Signal Processing Symposium (NORSIG'2006), Reykjavik, Iceland, pp. 130-133,
2006. 

An online version of the article (with more figures that the published paper
and some typos corrected) can be found here:
http://www.cs.tut.fi/~gomezher/projects/eeg/norsig06html/autobss.html 

Best regards,
Germán




From: eeglablist-bounces at sccn.ucsd.edu
[mailto:eeglablist-bounces at sccn.ucsd.edu] On Behalf Of Ennio BRISELLI
Sent: 10 July 2007 10:52
To: eeglablist at sccn.ucsd.edu
Subject: [Eeglablist] Ocular artifacts

Hi EEGLab experts,
I am a EEGLab newbie, and I want to remove ocular artifacts from
the EEG channels without the EOG channel information.
Is there some EEGLab's plug-in to do it?
Thanks.
 
Regards,
 
       Ennio
 
_________________________________________
Dr. Ennio BRISELLI
 
"Enrico Fermi" Centre
MARBILab
c/o Fondazione Santa Lucia
Via Ardeatina, 306
00179 Roma - Italy
Tel.: +39 065150.1527
Fax:  +39 065150.1528
&
Università degli Studi di Roma "La Sapienza"
Dipartimento di Fisica - Gruppo G1
Piazzale Aldo Moro, 2
00185 Roma - Italy
Tel.: +39 064991.3928
Fax:  +39 064991.3484
ennio.briselli at roma1.infn.it