Muthuraman Muthuraman muthuraman10 at HOTMAIL.COM
Fri Feb 23 15:13:40 CET 2007


Thanks for the reply, i have plotted the headmodel plot for the 55
electrodes and attached it with this mail

The next step of using the source analysis with calculated grid works
without any problem,
i needed to adjust elec structure according to the radius of the volume
conduction model

How can i plot the source, i do not have any anatomical MRI at this moment?
Is there a way to see the results from the source analysis using DICS in the
structure of a normal topoplot

Thanking you

With regards

>From: Robert Oostenveld <r.oostenveld at FCDONDERS.RU.NL>
>Reply-To: FieldTrip discussion list <FIELDTRIP at NIC.SURFNET.NL>
>Subject: Re: [FIELDTRIP] leadfieldmatrix!
>Date: Thu, 22 Feb 2007 18:12:13 +0100
>On 22 Feb 2007, at 17:21, Muthuraman Muthuraman wrote:
>>Warning: electrodes do not ly on sphere surface -> using projection
>>>In fieldtrip-20070109\private\eeg_leadfield4 at 60
>>  In fieldtrip-20070109\private\compute_leadfield at 435
>>  In prepare_leadfield at 209
>Electrodes of course should ly on the skin surface, that is the case  in
>the real world and it should also be the case in your model. Did  you plot
>the electrodes in combination with the sphere on which they  should ly? You
>can use headmodelplot for that.
>Please update to the latest version of fieldtrip, the sourceplot  function
>has recently been improved. The documentation of sourceplot  explains how
>to use the funparameter and maskparameter. See also the  tutorial
>documentation. Your specification 'source' is certainly not  going to work,
>sice 'source' is not a source parameter.

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