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SPM for programmers » Understanding the framework of DCM
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Tips Martin Pyka on 01 May 2012 09:59 am

Understanding the framework of DCM

DCM is implemented in a framework that can be used to develop and test other models using the Expectation Maximization algorithm and Bayesian techniques. To understand how to use other models within this framework, I can recommend to look at spm_nlsi.m. After the return-command, at the end of the script, there is a nice short example, how to setup everything in order to test your own model.

And by the way: the code for the dynamic causal model can be found in spm_fx_dcm.m (the neural signal is in y(:,1), some hemodynamic parameters are stored in y(:,2:5)) and spm_gx_dcm.m (the hemodynamic forward model).

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