[Eeglablist] What is identical ICA decompositions and what is differenct ICA decompositions?

[Makoto Miyakoshi]

Dear Snow,

Don't apply ICA on each condition separately. I mean, scientifically that
is not wrong, but EEGLAB is not designed to work in that way. Instead, you
should run ICA on a data set with all conditions, and conditions should be
separated after ICA. In this way different conditions can have same
independent components, and difference of activities can be tested *within*
independent components.

Makoto


On Thu, May 29, 2014 at 5:06 AM, 张雪 <zhangxue at psych.ac.cn> wrote:

> Dear Makoto
>          I was using  EEGLAB's studyset analysis. I did ICA for every
> condition of every subject. All the ICA numbers are 66. But When I do the
> preclust in study, the program still remind me different ICA decomposition
> and I couldn't do the following analyses.
>           So, I want to know, what kind of ICA decompositions are
> identical?
>           Best wishes
>  Zhang Xue
>
>
>
>
>


-- 
Makoto Miyakoshi
Swartz Center for Computational Neuroscience
Institute for Neural Computation, University of California San Diego
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://sccn.ucsd.edu/pipermail/eeglablist/attachments/20140529/63a3f4b7/attachment.html>