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Dear 'trippers,<br>
<br>
last week we fixed a <b>critical bug in freqstatistic </b>which
might have caused wrong clustering on channel-level. You might have
been affected by this <b>if your channel labels were not ordered
alphabetically by default </b>(e.g. BTI system, EEG systems,
etc.). <br>
In essence, the bug caused channelclusters which did not make sense
(e.g. frontal channels and occipital channels in one cluster). You
might have noticed already whether you were affected by critically
looking at the plots. <b>This bug was introduced in May 2011</b>,
so if you made a cluster-based permutation test on channel-level
between May and now, <b>please make the effort to rerun </b>to be
sure that your clusters are not due to this bug! <br>
<br>
Thanks to Gregor Volberg who reported this bug and Tobias Staudigl
for also looking into this one and providing a fix. <br>
<br>
Our sincere apologies for this. On behalf of the FieldTrip team,<br>
Jörn<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
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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