HI,

some of the lines in anadef.m are not commented and some clarifications would be useful about the meaning of the following parameters:

AnaDef.fmri_t = 16;

AnaDef.fmri_t0 = 9;

AnaDef.Subj{cSubj}.Duration = [3 3 3 3 3];
(is this vector just the nb of runs x the number of conditions?)

Thank you in advance

Laurent

Eventually, I found the meaning of those parameters by myself
L

Hey,

Could you tell what you found? I'm having the exact same issue. :)
 
Best,
LH

Hi,

I am trying to run BASCO (esp the anadef.mat script) with my own data. Just wondering if anyone here who has successfully done so can help me understand the following parameters?

Where can I find these parameters/Do they need to be changed according to what scanner/sequence has been used? 
AnaDef.fmri_t = 16;     
AnaDef.fmri_t0 = 9;


AnaDef.Subj{cSubj}.Duration = [3 3 3 3 3];
(I guess that each number represents the duration of a condition, assuming that all trials in a condition have the same duration. There are 5 conditions in the sample data used in the tutorial and thus 5 values to be specified.)
Wondering what if the durations are different among the trials in a condition (e.g. for movie stimuli)? Should we include 5 arrays of durations then in this case?

Really appreciative of any suggestion/advice. Many thanks in advance

johnny

Hi Jon,
I am wondering if you finally found the right answer regarding the variable duration of your events. I cannot find any documentation about it.
Any suggestions could help ?
Thanks in advance.

Dear Johnny,

please check the SPM manual for an explanation of the fmri_t and fmri_t0 parameters. In short:
fmri_t is the microtime resolution
fmri_t0 ist the microtime onset

You are absolutely right concerning the durations. A fixed duration for each each condition is assumed. I will change this in a future relase.

Best,

Martin