[Eeglablist] channel coherence
Κλάδος Μανούσος
mklados at med.auth.gr
Wed Jan 30 02:27:15 PST 2008
Hello Kevin,
You can see that...
http://sccn.ucsd.edu/pipermail/eeglablist/2004/000633.html
it may help you
Regards
Klados Manousos
2008/1/29, Johannes Sarnthein <johannes.sarnthein at gmail.com>:
>
> Hi Kevin,
> You can calculate the coherence spectrum with a script of the type below.
> Best,
> Johannes
>
> ch1 = 6;
> ch2 = 49;
> window = 2*EEG.srate; % create 2 sec epochs
> noverlap = window/2; % overlap epochs by 50% for smoothing
> nfft = window*2; % zero-padding factor 2 for smoothing
> fs = EEG.srate;
>
> [Cxy,F] = mscohere(EEG.data(ch1,:),EEG.data
> (ch2,:),window,noverlap,nfft,fs);
>
> figure;
> plot(F,Cxy)
>
>
> 2008/1/28, Kevin Whittingstall <kevin.whittingstall at tuebingen.mpg.de>:
> >
> > Hello there,
> >
> > I am trying to calculate the coherence between two
> > channels of continuous data (that is, there are no 'epochs'. Any
> > suggestions on how to carry this out?
> >
> > Thanks,
> > Kevin
> >
> >
> > --
> > --------------------------------------------
> > Kevin Whittingstall, Ph.D.
> > Max Planck Institute for Biological Cybernetics
> > Spemannstraße 38
> > 72076 Tübingen
> > Phone: +49-7071-6011700
> >
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>
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--
Κλάδος Α. Μανούσος
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