Matthew,
> It appears to me that it isn't possible to specify variable event durations in
> batch mode, when there is more than one condition per session (which is surely
> the most common case) (spm_get_ons.m lines 256-274). Is that right? Has anyone
> invented a way round this if so?
I haven't been able to specify variable event durations either - instead,
what I've been doing is specify the conditions as regressors, after
generating one regressor per condition per session, by creating a stick
function of ones and zeros, convolving it with the output from spm_hrf
(all this at 10 bins per second) and then sub-sampling from the
resulting function at the TR.
Would be very interested to hear if anyone has worked out a different
method though.
Best,
-k.
_____________________________________________________________________________
Kalina Christoff Email: [log in to unmask]
Office: Rm.478; (650) 725-0797
Department of Psychology Home: (650) 497-7170
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