<html>
<head>
<meta content="text/html; charset=ISO-8859-1"
http-equiv="Content-Type">
</head>
<body text="#000000" bgcolor="#FFFFFF">
<div class="moz-cite-prefix">Hi Gregor,<br>
<br>
would there be any reason why the following approach might not
work?<br>
<a class="moz-txt-link-freetext" href="http://fieldtrip.fcdonders.nl/example/create_single-subject_grids_in_individual_head_space_that_are_all_aligned_in_mni_space?s">http://fieldtrip.fcdonders.nl/example/create_single-subject_grids_in_individual_head_space_that_are_all_aligned_in_mni_space?s</a>[]=warp<br>
<br>
The specific steps are in more detail explained in this (new)
tutorial:<br>
<a class="moz-txt-link-freetext" href="http://fieldtrip.fcdonders.nl/development/beamformingextended">http://fieldtrip.fcdonders.nl/development/beamformingextended</a><br>
<br>
Best,<br>
Jörn<br>
<br>
On 3/4/2013 6:45 PM, Gregor Volberg wrote:<br>
</div>
<blockquote
cite="mid:5134EBC20200005700011EEC@gwsmtp1.uni-regensburg.de"
type="cite">
<meta content="text/html; charset=ISO-8859-1"
http-equiv="Content-Type">
<meta name="GENERATOR" content="MSHTML 9.00.8112.16464">
<div>Dear Fieldtrippers,</div>
<div> </div>
<div>I need to ask for a helpful hint on MNE source
reconstructions. Following this tutorial <a
moz-do-not-send="true"
href="http://fieldtrip.fcdonders.nl/tutorial/minimumnormestimate">http://fieldtrip.fcdonders.nl/tutorial/minimumnormestimate</a> I obtained
nice individual cortical meshes and source points; the
MNE forward and inverse solution for the individuals all work
well. I would now like to normalize the individual grids to a
template brain in order to do statistics and averaging for
plotting. I figured out that I could use ft_sourceinterpolate to
tranform the grid into a volumetric representation, and then use
ft_volumenormalise to normalise to a standard brain. But this
did not work too well for source structures containing time
series (like 'mne'-stcutures) where the computational load gets
very high. I also tried to use a grid of one subject as a
template for the other subject's grids with ft_sourceinterpolate
and cfg.interpmethod = 'smudge', but this seems to require two
grids with the same number of source points as input(?).</div>
<div>Is there a way to do a normalisation directly on brain
triangulations / source grids ? Thanks for any help!</div>
<div>Best regards,</div>
<div>Gregor </div>
<div> </div>
<div>-- <br>
Dr. rer. nat. Gregor Volberg <<a moz-do-not-send="true"
href="mailto:gregor.volberg@psychologie.uni-regensburg.de">gregor.volberg@psychologie.uni-regensburg.de</a>>
( <a moz-do-not-send="true"
href="mailto:gregor.volberg@psychologie.uni-regensburg.de">mailto:gregor.volberg@psychologie.uni-regensburg.de</a>
)<br>
University of Regensburg<br>
Institute for Experimental Psychology<br>
93040 Regensburg, Germany<br>
Tel: +49 941 943 3862 <br>
Fax: +49 941 943 3233<br>
<a moz-do-not-send="true"
href="http://www.psychologie.uni-regensburg.de/Greenlee/team/volberg/volberg.html">http://www.psychologie.uni-regensburg.de/Greenlee/team/volberg/volberg.html</a><br>
</div>
<br>
<fieldset class="mimeAttachmentHeader"></fieldset>
<br>
<pre wrap="">_______________________________________________
fieldtrip mailing list
<a class="moz-txt-link-abbreviated" href="mailto:fieldtrip@donders.ru.nl">fieldtrip@donders.ru.nl</a>
<a class="moz-txt-link-freetext" href="http://mailman.science.ru.nl/mailman/listinfo/fieldtrip">http://mailman.science.ru.nl/mailman/listinfo/fieldtrip</a></pre>
</blockquote>
<br>
<br>
<pre class="moz-signature" cols="72">--
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
Contact:
E-Mail: <a class="moz-txt-link-abbreviated" href="mailto:jm.horschig@donders.ru.nl">jm.horschig@donders.ru.nl</a>
Tel: +31-(0)24-36-68493
Web: <a class="moz-txt-link-freetext" href="http://www.ru.nl/donders">http://www.ru.nl/donders</a>
Visiting address:
Trigon, room 2.30
Kapittelweg 29
NL-6525 EN Nijmegen
The Netherlands</pre>
</body>
</html>