[Eeglablist] spectral analysis of EEG signal
Arnaud Delorme
arno at ucsd.edu
Thu Oct 16 15:34:53 PDT 2014
To obtain power at specific frequencies, enter them in the 'freqs' input and select 'plottype', 'curve' to plot the results as a curves against time instead of a time-frequency image.
The output of newtimef always return the power which is being plotted.
Arno
On Oct 16, 2014, at 2:39 PM, Makoto Miyakoshi <mmiyakoshi at ucsd.edu> wrote:
> Dear Arno,
>
> I'm also curious to know if there is a supported option to obtain the raw value from newtimef(). I've got a similar inquiry from John Iversen recently and I could not answer it.
>
> Makoto
>
> On Wed, Oct 8, 2014 at 1:02 PM, nishanth reddy <nishanth.reddy56 at gmail.com> wrote:
> I'm doing Time-frequency analysis of my EEG signal to find out the power of each frequency at particular time by plotting the channel time-frequency maps.
>
> I'm unable to give the length of hamming as 10 seconds and also , i'm not getting the RAW power of frequency at time.
>
> Is plotting the time frequency analysis right method to find out the power of frequencies ? If not , can anyone send me the Matlab code to perform the FFT(, Pwelch) to find out the power
> --
> Thanks&Regards
>
> Nishanth
>
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>
> --
> Makoto Miyakoshi
> Swartz Center for Computational Neuroscience
> Institute for Neural Computation, University of California San Diego
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