I applied the spm_dcm_sessions routine to get the significance results
for several contrasts of connections of 8 subjects now. Of course with
the same model for every subject. The models are quite simple 3 region
models, with 4 connections and 5 conditions.
I get a error during the Bayesian RFX calculations, no matter if I
apply a simple contrast (e.g. is there a effect over all subjects?) or
if I contrast two effects (e.g. is there a difference between the effect
of condition one and the effect of condition two over all subjects?):
>> Warning: Divide by zero.
>> > In spm_dcm_sessions at 119
I also can confirm Ho Ming's observation, he reported that all the
contrast mean values and the variances were identical (Item# 027399;
Fri, 2 Mar 2007, 14:04:05). I wasn't able to find a reply to this post
yet.
I downloaded and patched (Updates_958.tar.gz) the current SPM5 version
today, so I guess it is up to date. Matlab is Version 7.0.1.24704 (R14)
Service Pack 1, running on a Windows XP machine.
Best regards,
Ferenc
------------------------------------------------------------
Ferenc Acs
Lehrstuhl Prof. Dr. M. W. Greenlee
Institut für Psychologie
Universität Regensburg
93040 Regensburg
Tel. +49 (0)941 943 3582
Fax +49 (0)941 943 3233
Deutsch:
http://www.psychologie.uni-regensburg.de/Greenlee/team/acs/acs.html
English:
http://www.psychologie.uni-regensburg.de/Greenlee/team/acs/acs.en.html
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