[Eeglablist] spectral analysis of EEG signal

[Ahmed Almurshedi]

Hello,
can we plot this curve (pwer vs time) to the grand average in the study instead of ERPimage?

AHMED



From: Arnaud Delorme <arno at ucsd.edu>
To: mmiyakoshi at ucsd.edu 
Cc: eeglablist <eeglablist at sccn.ucsd.edu> 
Sent: Friday, October 17, 2014 6:34 AM
Subject: Re: [Eeglablist] spectral analysis of EEG signal
 


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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