[Eeglablist] Preclustering problem

[Makoto Miyakoshi]

Dear Danilo,

Let me give you my initial guess.

1. Download the latest version of EEGLAB.
2. Recompute dipoles (pop_multifit) with default r.v. threshold to 100%.
3. Construct STUDY and run precompute again.

If the problem still persists let us know.

Makoto


2012/12/20 Danilo Gustavo <danilo.gustavo at gmail.com>

> Hi all,
>    I am having problem with the clustering procedure and I appreciate any
> help with it.
>    I have a study with 49 subjects and each one of them did some memory
> and emotional task while recorded via continuous EEG. We have already run
> the ICa in all datasets and want to cluster the components to identify
> similar activations in all subjects.
>    When I try to precluster this study with spectra, dipole and scalp maps
> options marked I get a wrong message saying that some dipole information is
> missing and that components are not assigned a dipole when the residual
> variance is too high. I tried to lower the residual variance in the study
> info menu but it stayed at 15 even though I pressed 10 at "select by r.v."
> option.
>    If I remove the dipole option from the pre-clustering array menu the
> cluster process completes but I can't plot the scalp map figures. What I
> have to do to correctly run the cluster and plot the scalp maps of them?
>    Thanks for any contribution or idea.
> Regards,
> Danilo Gustavo
> Universidade de Brasília
>
>
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-- 
Makoto Miyakoshi
JSPS Postdoctral Fellow for Research Abroad
Swartz Center for Computational Neuroscience
Institute for Neural Computation, University of California San Diego
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