Dear Wei,
As far as I remember the DCM.A, DCM.B and DCM.C fields just contain a description of the
structure of the network - matrices of 1's and 0's telling SPM what is connected to what.
Naturally, this is fixed and will not be updated.
In contrast, DCM.Ep contains the actual parameter estimates - these should be different between models.
Best, Will.
> -----Original Message-----
> From: SPM (Statistical Parametric Mapping) [mailto:[log in to unmask]]
> On Behalf Of Wei He
> Sent: 29 January 2013 03:15
> To: [log in to unmask]
> Subject: [SPM] DCM.mat file
>
> Dear all,
>
> Just realized some wired things happened to my DCM output files
> (attached one inconsistent output here):
>
> I’ve defined three different model structures to evaluate my ERF data.
> However, after inverting, the DCM.Ep structures were all the same
> across the three models (the parameters inside were differed in some
> ways), while the DCM.A, DCM.B, and DCM.C still kept the original
> settings. Does this mean the DCM failed to recognize the differences
> in model structures given some unknown reason? This happened to all my
> data, is there any way I could fix the problem without re-run the whole
> processing?
>
> Thanks very much in advance.
> Wei
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