[Eeglablist] ICA component rejection
seetaramaraju.jampana at gmail.com
Fri Jul 24 13:34:11 PDT 2015
Thank you for the reply.
Can you send me some good figures of frequency power spectrum of the
IC.Also can you share the independent components of a good EEG data.
On Fri, Jul 24, 2015 at 11:46 AM, Makoto Miyakoshi <mmiyakoshi at ucsd.edu>
> Dear Raju,
> Sorry to tell you this but the 21 ICs are all noise.
> I strongly recommend you perform preprocess again. Read this page and
> check the steps. You may want to consider using PREP pipeline by Nima
> Bigdely-Shamlo (described in the wiki).
> Good ICs are determined by
> 1. Dipolarity of the IC scalp maps (see Delorme et al. 2012 PLoS One)
> 2. Frequency power spectrum of the ICs
> 3. ERP or ERSP (if available)
> Note this kind of evaluation (or interpretaion) is dependent on the
> experimental paradigms.
> Also, remember 'Garbage in, Garbege out'; if the experimental design is
> screwed up, you don't get EEG even if you use the fanciest preprocessing
> On Fri, Jul 24, 2015 at 6:38 AM, seetaramaraju jampana <
> seetaramaraju.jampana at gmail.com> wrote:
>> Hi ,
>> How to reject ICA components by map. I mean to say , when the
>> components maps are generated what are the areas to look out which suggest
>> that the particular components has to be rejected.
>> For Eg. the component map has been generated so which components are
>> fit for rejection.The compononents maps link is
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> Makoto Miyakoshi
> Swartz Center for Computational Neuroscience
> Institute for Neural Computation, University of California San Diego
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