[Eeglablist] spectral analysis of EEG signal

[Makoto Miyakoshi]

Dear Ahmed,

No that is not supported.
Here is a lazy idea-Why don't you abs(hilbert([ERPimage values])) to obtain
instantaneous amplitude (well, of course you should think about the filter
window effect on the both ends if you apply it)?

Makoto

On Fri, Oct 24, 2014 at 11:38 AM, Ahmed Almurshedi <ahmed19875000 at yahoo.com>
wrote:

> 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
>
> _______________________________________________
> Eeglablist page: http://sccn.ucsd.edu/eeglab/eeglabmail.html
> To unsubscribe, send an empty email to
> eeglablist-unsubscribe at sccn.ucsd.edu
> For digest mode, send an email with the subject "set digest mime" to
> eeglablist-request at sccn.ucsd.edu
>
>
>
>
> --
> Makoto Miyakoshi
> Swartz Center for Computational Neuroscience
> Institute for Neural Computation, University of California San Diego
>
>
> _______________________________________________
> Eeglablist page: http://sccn.ucsd.edu/eeglab/eeglabmail.html
> To unsubscribe, send an empty email to
> eeglablist-unsubscribe at sccn.ucsd.edu
> For digest mode, send an email with the subject "set digest mime" to
> eeglablist-request at sccn.ucsd.edu
>
>
>
> _______________________________________________
> Eeglablist page: http://sccn.ucsd.edu/eeglab/eeglabmail.html
> To unsubscribe, send an empty email to
> eeglablist-unsubscribe at sccn.ucsd.edu
> For digest mode, send an email with the subject "set digest mime" to
> eeglablist-request at sccn.ucsd.edu
>



-- 
Makoto Miyakoshi
Swartz Center for Computational Neuroscience
Institute for Neural Computation, University of California San Diego
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://sccn.ucsd.edu/pipermail/eeglablist/attachments/20141029/4d650e2b/attachment.html>