[FieldTrip] topoplotER - how to plot a selection of channels ?

"Jörn M. Horschig" jm.horschig at donders.ru.nl
Wed Aug 7 11:41:26 CEST 2013

Hi Franziska,

check out the help of ft_topoplotER and what options there are for 
cfg.interpolation, one of these does what you want (afair 'cubic'). An 
alternative would be to set datapoints of all irrelevant channels to nan 
and then use cfg.interpolatenan = 'no', but the former suggestion is 
cleaner/better/easier than the latter.

Good luck with writing your thesis!

On 8/7/2013 11:23 AM, franziska.bilger at uni-ulm.de wrote:
> Dear subscribers,
> I´m using fieldtrip to analyze the data for my bachelor thesis (topic: 
> motor imagery in patientens in vegetative state) and I would be happy 
> to get some help concerning the function ft_topoplotER.
> Originally, my data derives from a 256-channel system, but I only like 
> to plot a selection of 60 channels above the motor cortex.
> This is my Region of Interest.
> When I´m now plotting the data from these 60 channels with 
> ft_topoplotER I receive a figure, which shows the plotted activation 
> over the whole cortex.
> My Question: Is there a possibility to plot only the activation in my 
> Region of Interest/over the selected 60 channels above the motor cortex?
> This would result in a figure where there´s only activation shown over 
> the motor cortex and the rest of the plot is blank/white.
> Thank you very much!
> Kind regards,
> Franziska
> _______________________________________________
> fieldtrip mailing list
> fieldtrip at donders.ru.nl
> http://mailman.science.ru.nl/mailman/listinfo/fieldtrip

Jörn M. Horschig
PhD Student
Donders Institute for Brain, Cognition and Behaviour
Centre for Cognitive Neuroimaging
Radboud University Nijmegen
Neuronal Oscillations Group
FieldTrip Development Team

P.O. Box 9101
NL-6500 HB Nijmegen
The Netherlands

E-Mail: jm.horschig at donders.ru.nl
Tel:    +31-(0)24-36-68493
Web: http://www.ru.nl/donders

Visiting address:
Trigon, room 2.30
Kapittelweg 29
NL-6525 EN Nijmegen
The Netherlands

More information about the fieldtrip mailing list