[Eeglablist] references for usually low number of retained ICs?

[Tarik S Bel-Bahar]

Hello eeglabers,

Does anyone know of specific references (articles/chapters) that specify
that which we know from practice, namely that usually there are only ~5 to
20 interpretable neural ICs in HD-EEG decompositions ?

My understanding is that several review chapters and articles from the SCCN
group show this fact (...that there is a limited number of
real/valid/interpretable neural ICs in most ICA decompositions of EEG data).

If you know of any papers that actually retain a small number of neural ICs
for their analyses, that would be great too.

I understand there are some researchers that only remove artifactual
components and keep in any others (so as not to drop neural signals
unnecessarily). However, it is also the case that some researchers keep
only a small select of neural/valid ICs, whether or not they "stay in ICA
space" or "reconstruct the EEG data" for their analyses.

Thanks very much for any suggestions!
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