[Eeglablist] Understanding topoplot

[Mikołaj Magnuski]

Hi,

just to add to Stephen's answer - you can plot anything with topoplot
(p-values, correlation coefficients,
mean spectral power etc.) - topoplot plots and interpolates given values,
whatever these
values are. The order of electrode-value pairings is determined by
EEG.chanlocs
(this structure can be passed to topoplot).


Pozdrawiam,
Mikołaj Magnuski


2014-02-27 19:54 GMT+01:00 Stephen Politzer-Ahles <politzerahless at gmail.com>
:

> Hi Joaquin,
>
> topoplot() is plotting the activity at a certain time (or an average over
> a certain time window) at all channels, and interpolated between channels.
> I've never used it to plot activity restricted to a certain frequency,
> although in principle I guess that is possible; I've only used it to plot
> the raw ERP amplitudes, though.
>
> Best,
> Steve
>
>
>
> Stephen Politzer-Ahles
> New York University, Abu Dhabi
> Neuroscience of Language Lab
> http://www.nyu.edu/projects/politzer-ahles/
>
>
> On Thu, Feb 27, 2014 at 2:51 PM, joaquin .cuomo <jmcuomo at gmail.com> wrote:
>
>> Hi,
>>
>> I´m not fully sure if I´m understanding how topoplot() works.
>>
>> First I thought that it was plotting the interpolation of all channel
>> spectrums at a given frequency, but then I found spectopo(), which I have
>> not yet tested it, but seems to do what I supposed topoplot was doing.
>>
>> I can´t understand what is topoplot plotting, *because if neither a
>> frequency nor time is fixed *it can not be plot.
>>
>> Please someone clarify my thoughts.
>>
>> Thanks!
>>
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>
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