[Eeglablist] Understanding topoplot

[Stephen Politzer-Ahles]

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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