Hi everyone,
I want to do a DCM analysis on monkey fMRI data to analyse effective connectivity.
The human HRF saved by default in spm8 (file "spm_hrf.m") has been replaced by a monkey HFR (that in particular takes into account the fact that we do not measure BOLD by use a contrast agent to enhance SNR). This new HRF has been renamed as the default, so all is transparent to spm8.
My question is the following: does the DCM procedure make any assumption on the human based HRF, that I should be aware of, or does it only use the parameters defined in the spm_hfr.m file ?
Anybody already tried DCM on monkey fMRI data?
Thank you!
Justine.
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