[Eeglablist] Ocular Artifact Correction

[Makoto Miyakoshi]

Dear Joao,

You need to run the group-level statistics in the end, right? Then run ICA
for all subjects and create a STUDY to identify P300. If you want to test
P300 at channels like Fz, Cz, Pz, use my backprojection function
std_backproj() after cluster cleaning (i.e. creating a 'garbabe box'
cluster by specifying 3 std as a threshold and move any suspicious scalp
maps ICs to the garbage box' so that each of your cluster is maximally
consistent in scalp maps, spectra, etc by visual inspection).
http://sccn.ucsd.edu/wiki/Plugin_list_process

Makoto



2014-03-20 7:25 GMT-07:00 Ethan Weed <ETHAN at cfin.dk>:

> If you have enough events, why not just remove epochs that have artifacts
> entirely? Then you will be on the safe side, and you won't have to worry
> about distorting your data artificially.
>
>
> Best,
> Ethan
>
> On Mar 18, 2014, at 06:08 , João Pedrosa <jpedrosa.casq at gmail.com> wrote:
>
> > Dear all,
> > given a simple P3 paradigm what do you think is the best signal
> processing technique for the correction of the ocular artifacts (mainly
> blinks) with minimum EEG distortion?
> > I have tried different techniques such as ICA and manual component
> selection and also the algorithms available on the AAR 1.3 plugin with
> fairly good results but would anyway like to know what you advise on.
> >
> > Best regards,
> > João Pedrosa
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-- 
Makoto Miyakoshi
Swartz Center for Computational Neuroscience
Institute for Neural Computation, University of California San Diego
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