[Eeglablist] Re: eeglablist Digest, Vol 16, Issue 6

[zonglei zhen]

 Hi all:
      In my mind, to understand the coherence between independent
components,you need to learn the difference between multivariate  random
variable and multivarite time series.Informax ICA give out independent
random variable,it's a multivariate random variabel tehnique.SOBI can regard
as a multivariate time series thchnique.components from the former
technique  exsist some coherence;from the latter, no coherence.

But, I am not sure i am right. maybe someone can give us further explantion
about it.


Thanks,

On 2/7/06, eeglablist-request at sccn.ucsd.edu <
eeglablist-request at sccn.ucsd.edu> wrote:
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>   1. Can I do coherence between independent components? (Zhang Yan)
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> ---------- Forwarded message ----------
> From: "Zhang Yan" <zhang at ccs.fau.edu>
> To: eeglablist at sccn.ucsd.edu
> Date: Mon, 6 Feb 2006 11:37:42 -0500 (EST)
> Subject: [Eeglablist] Can I do coherence between independent components?
> Hi, Dear All:
>
> I am recently working on ICA. One question confused me: could I do
> coherence analysis between independent components of EEG?
>
> Because ICA assume sources are mutually uncorrelated. So after ICA, the
> separated sources should be uncorrelated. However, some people used ICA
> and then did coherence analysis among components. What is the basic theory
> for doing that? Could you recommend some papers for their theory?
>
> Thank you very much.
>
> Rachel/
>
>
>
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