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Dear Ulrich,<br>
<br>
I think you are confusing some things there. cfg.neighbourdist is a
setting for defining neighbouring <i>sensors</i>, thus it's not
applicable for source level statistics (see ft_prepare_neighbours).
However, I never did cluster-based permutation test on source-level
in FieldTrip, but for me it seems that it just works by taking
neighbouring voxels as neighbours. So, you shouldn't need to define
anything special for running sourcelevel stats (if I am wrong,
someone with more experience should correct me here). <br>
But, maybe you meant to write sensor level, but wrote source level -
in that case I'd be happy to help.<br>
<br>
Best,<br>
Jörn<br>
<br>
On 1/27/2012 4:34 PM, Pomper, Ulrich wrote:
<blockquote cite="mid:4F22C422.4080906@charite.de" type="cite"> Dear
list members,<br>
I am trying to perform a cluster based permutation test on power
values at source level.<br>
I managed to run the test using just the time and frequency
dimensions (cfg.neighbourdist = [])<br>
but I am struggling with the issue of how to define the
neighbourdist parameter.<br>
I've looked through the tutorial, the FT site as well as through
the mailinglist but couldn't find an answer, so I'd really
appreciate any hint on this.
<p style="margin-bottom: 0in">Thanks a lot, <br>
Ulrich </p>
<p style="margin-bottom: 0in"><br>
</p>
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<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
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>
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