[Eeglablist] How to use ICA

[Stephen Politzer-Ahles]

Hello Aditya,

See http://sccn.ucsd.edu/wiki/Chapter_09:_Decomposing_Data_Using_ICA .
Basically you just need to run an ICA decomposition, use some method to
decide which ICs represent noise that you would like to remove, and then
remove those ICs from the data. If you search through the literature and
the EEGLAB mailing list archives, you will find lots of discussion of more
details about how to make ICA work better (regarding topics such as what
reference to use, what baseline to use, whether or not to reject certain
other artifacts before ICA, whether to run ICA on continuous or epoched
data, etc.).

Good luck,
Steve



Stephen Politzer-Ahles
New York University, Abu Dhabi
Neuroscience of Language Lab
http://www.nyu.edu/projects/politzer-ahles/

On Thu, Mar 12, 2015 at 5:29 PM, Aditya Bagusmulya <
aditya.bagusmulya at gmail.com> wrote:

> Hello,
>
> In my thesis i need to use ICA for separating between real data and noise.
> My data is EEG signal and the case is epilepsy. So I use EEGLAB for do it.
> But, I still cant understand how to use ICA. I'd read the step and tried to
> do but i didn't know, whether it was true steps or not.
> This is the tutorial that i read http://sccn.ucsd.edu/eeglab/quickrej.html
> Do I need to reject the artifact first? Can I go to run ICA step without
> reject artifact?
> Please help me.
> I picked the data from Bonn University.
> http://epileptologie-bonn.de/cms/front_content.php?idcat=193&lang=3
>
> Hopefully someone can help me.
> Thank you.
>
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