Hi Ling
If you are going to use spm_mfx you first need to specify and estimate
the group analysis as a multisession fixed effect analysis. When you
have done this you can use the SPM.mat file as input to spm_mfx. You
can read more about the difference between the mixed effect analysis
implemented in spm_mfx and the standard random effects analysis in the
paper mentioned below.
@article{Friston2005,
Author = {Friston, K. J. and Stephan, K. E. and Lund, T. E. and
Morcom, A. and Kiebel, S.},
Journal = {NeuroImage},
Number = {1},
Pages = {244-252},
Title = {Mixed-effects and {fMRI} studies},
Volume = {25},
Year = {2005}}
Hope this helps
Torben
Torben Ellegaard Lund
Assistant Professor, PhD
The Danish National Research Foundation's Center of Functionally
Integrative Neuroscience (CFIN)
Aarhus University
Aarhus University Hospital
Building 30
Noerrebrogade
8000 Aarhus C
Denmark
Phone: +4589494380
Fax: +4589494400
http://www.cfin.au.dk
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Den 12/10/2008 kl. 19.45 skrev Wang, Ling:
> Dear All,
>
> When I tried mixed effect with spm_mfx within SPM5, which calls the
> function of spm_conman (in the line of 149 of spm_mfx.m). Spm_conman
> reports a wrong message. There is a code of "xX = SPM.xX" in the
> line of 803 of spm_conman.m, but actually the element of SPM.xX
> (varargin{1}.xX) does not be sent to the function of spm_conman.
> Thank you very much if anyone could comment on that!
>
> Best wishes,
> Ling
> --
> Ling Wang, PhD student
> Cognitive Neurology
> Institute of Neurosciences and Biophysics - Medicine
> Research Centre Juelich
> 52425 Juelich, Germany
> phone: +49-2461-612481
> Fax: +49-2461-612820
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