[Eeglablist] Topography of a Grand Average

Makoto Miyakoshi mmiyakoshi at ucsd.edu
Tue Mar 4 19:18:20 PST 2014


Dear Andres,

You can use STUDY. STUDY design allows users to select which subject to
include/exclude, and it can plot scalp topos (but I don't know scalp topo
of what, you mean).

Makoto


2014-03-02 9:23 GMT-08:00 Stephen Politzer-Ahles <politzerahless at gmail.com>:

> Hi Andres,
>
> I don't know if it's possible from the GUI because I haven't used that for
> plotting (but maybe others on the list can advise). But it's easy from the
> command line. topoplot() doesn't really care what the format of the data
> is, it just takes a vector of voltages (one per channel). So you can create
> a grand average of subjects at the command line (by reading each
> participant's average into a matrix and then using mean() ) and then give
> that to topoplot(). There may be easier ways to do this using STUDY but
> I've never tried.
>
> Best,
> Steve
>
>
>
> Stephen Politzer-Ahles
> New York University, Abu Dhabi
> Neuroscience of Language Lab
> http://www.nyu.edu/projects/politzer-ahles/
>
>
> On Sun, Mar 2, 2014 at 1:24 AM, Andres Munguia Barcenas <
> andres.munguiabs at udlap.mx> wrote:
>
>>  Hi,
>>
>>
>>  I am trying to get the topography from a group of subjects.
>>
>>
>>  I can get the topography from a single subject. But is it possible to
>> get it from two or more subjects?
>>
>>
>>  Thank you
>>
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-- 
Makoto Miyakoshi
Swartz Center for Computational Neuroscience
Institute for Neural Computation, University of California San Diego
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