[Eeglablist] group level analysis

[Dénes Szucs]

I got this answer to a former qustion 

> Some comments below.  -Scott Makeig
QUESTION:
> > How to identify identical relevant components across subjects -- ? Is it 
> > usually possible to identify components across subjects? Is there an 
> > objective method for this or the researcher has to "subjectively" 
> > judge the similarity of ICs?
ANSWER:
> See Makeig et al Science 2002 for an example of clustering components 
> across subjects. Many components do fall into clusters - of course, the 
> number of clusters may depend on how many subjects and components you 
> are clustering, as well as the 'dipolarity' of the clustered components, 
> the measures used, etc.

NEW question: Is this clustering curently possible in EEGLab? If not how to do it? 
Can you supply some programs to help in this? If this is not possible what other 
(simpler?) method can be used for clustering components across subjects?
thank you


Denes Szucs
University of Cambridge, UK
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