[Eeglablist] Processing ICA component activation prior to unmixing

[Makoto Miyakoshi]

Dear Evyatar,

You can hack EEGLAB by saying EEG = NewEEG. But if you do this, beware that
EEGLAB always runs a consistency check function, namely eeg_checkset(), so
your modified data should be compatible with their check criteria.

By the way, in the eeg_checkset() you can find the line that does the same
thing. You may want to check it out just to make sure. I think your code is
correct, but I got always confused with the order of this matrix
multiplications.

NewEEG = inv(EEG.icasphere * EEG.icaweights)*EEG.ICAact


Makoto

On Mon, Dec 26, 2016 at 12:02 AM, Evyatar.Arad at sheba.health.gov.il <
Evyatar.Arad at sheba.health.gov.il> wrote:

> Dear list,
>
>
>
> I would like to process some of the ICA activations and then use the
> modified activations for the channel reconstruction. I suppose
>
>
>
>
>
> NewEEG = inv(EEG.icasphere * EEG.icaweights)*EEG.ICAact
>
>
>
> could be used, but I want the reconstructed dataset to be fully integrated
> into the EEGlab GUI. I've searched the list archives and haven’t found
> anything, so help would be much appreciated.
>
>
>
> Thanks and good week.
>
> Evyatar Arad
> R&D Engineer
> Centre of Advanced Technologies in Rehabilitation
> Sheba Medical Centre
>
>
>
>
>
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-- 
Makoto Miyakoshi
Swartz Center for Computational Neuroscience
Institute for Neural Computation, University of California San Diego
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