In pspm_dcm, trial-by-trial responses are extracted for computing mean response and thereby, response amplitude priors. When trials have unequal length, the average response is (implicitly) padded with zeros. NaN should be used instead.
It would also be preferable to initialise matrix D with NaN as this will speed up the extraction.
Summary
In pspm_dcm, trial-by-trial responses are extracted for computing mean response and thereby, response amplitude priors. When trials have unequal length, the average response is (implicitly) padded with zeros. NaN should be used instead.
It would also be preferable to initialise matrix D with NaN as this will speed up the extraction.
Line 645-660 of pspm_dcm.