Hi all,

I am trying to make a contrast for a group analysis (level 2) that we used the mixed model, or MFX analysis for.

We can't seem to use the contrast manager within the batch system because it keeps giving the error:

Contrasts folder : ./MFX/3subj/mfx
Failed 'Contrast Manager'
Reference to non-existent field 'xBF'.
In file "/net/rcss2/srv/export/ncf_tools/share_root/apps/arch/linux_x86_64/spm/12.6225b/config/spm_run_con.m" (v6025), function "spm_run_con" at line 128.

The following modules did not run:
Failed: Contrast Manager

We got the error message when we used the cond/sess way of defining some t-tests.

I like to use this method because you only have to think about the conditions you are interested in, not try and figure out how many zeros you have and where they go.

Unless someone has a fix for our error above, I will have to do it in on the fly after hitting the results button.

Are there any tricks to building this? Are the first three columns our conditions of interest? So if I wanted to contrast our first two conditions I would just need a 1 –1, as it says it zero pads it?

Thanks,

Stephanie

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Stephanie McMains

Neuroimaging Staff Scientist

Center for Brain Science

Harvard University

52 Oxford Street

Cambridge, MA 02138

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