[Eeglablist] Coherence or Correlation among set of electrodes

[Makoto Miyakoshi]

Dear Iman and ICA persons,

> So, how can I pick up topo and source time series
> among all 128 sources

Jason and Scott, this Iman's question is legitimate. I have been
asking the same question too. Other than Tim's new implementation of
the Bayesian stuff in SIFT in future, what other conventional approach
can help?

Makoto


2012/10/15 Iman M.Rezazadeh <irezazadeh at ucdavis.edu>:
> Dear Makoto and Tim,
> Thanks for your reply and suggestion  ! I will definitely go through SIFT to
> see how can it help me ...
> Each source (after BSS) has a time series and a topo map. Suppose that I
> have 128 channels means 128 sources and I want to know which sources are
> related to each other. So, how can I pick up topo and source time series
> among all 128 sources ( after removing some sources in the artifact
> rejection stage ) ?
> - for an example, I am interested to see if there is any fronto-parital
> synchrony for an inhibitory task. After BSS, there are more than 1 source
> which have frontal or parietal major activities in their topo. Now how could
> I select the appropriate source?
>
> I have found the attached paper. Do you have any thought?
> Best,
> Iman
>
> Iman M.Rezazadeh, PhD
> Postdoctoral Fellow
> Center for Mind and Brain
> University of California, Davis
> irezazadeh at ucdavis.edu
> cell:310-490-1808
>
>
>
> -----Original Message-----
> From: Makoto Miyakoshi [mailto:mmiyakoshi at ucsd.edu]
> Sent: Monday, October 15, 2012 7:53 PM
> To: Iman M.Rezazadeh
> Cc: eeglablist at sccn.ucsd.edu
> Subject: Re: [Eeglablist] Coherence or Correlation among set of electrodes
>
> Dear Iman,
>
> I wonder why Tim did not mention his SIFT.
> http://sccn.ucsd.edu/wiki/SIFT
> Apply SIFT after ICA. You can choose ICs so that they cover areas of
> interests.
>
> Makoto
>
> 2012/10/15 Iman M.Rezazadeh <irezazadeh at ucdavis.edu>:
>> Hi,
>>
>> Just wonder if there is a way to calculate the coherence measure
>> between two regions( set of channels-instead of two single channels)
>> in EEGLAB or any other software?  In other word, how can we find
>> regions in the brain which their activities are mostley related to each
> other using EEG ?
>>
>>
>>
>> Best,
>>
>> Iman
>>
>>
>>
>> Iman M.Rezazadeh, PhD
>>
>> Center for Mind and Brain
>>
>> University of California, Davis
>>
>> irezazadeh at ucdavis.edu
>>
>> cell:310-490-1808
>>
>>
>>
>>
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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



-- 
Makoto Miyakoshi
JSPS Postdoctral Fellow for Research Abroad
Swartz Center for Computational Neuroscience
Institute for Neural Computation, University of California San Diego