Hi, i am trying to set up the right model for my fMRI experiment, and i
would like to know if my design is right, as it is my first functional
analysis.
We showed a 6 min movie to a subject that was divided in 2 x 3 events.
After time t1 (black screen), the first event takes place, say Event 1,
then after interval t2 event 2, then after interval t3 event 3.
after interval t4, the type of events (but another movie) in the same
order where repeated.
I am using as Basic Shape Custom (1 entry per volume) creating 3 EVs,
for each of the 3 events, creating three text files ev1 ev2 ev3.
Simplyfied something like this(without the real timepoints, that would
be 140..)
ev1: ev2: ev3:
t1 0 0 0
1 0 0
t2 0 0 0
0 1 0
t3 0 0 0
0 0 1
t4 0 0 0
1 0 0
t5 0 0 0
0 1 0
t6 0 0 0
0 0 1
t7 0 0 0
My first question, is this a way how to set up my experiment and is it
the easiest way?
A second question: The MR scanner - Siemens Trio -made automatically
MotCor, so i turned the fsl McFlirt off. Would it have an impact on the
results if i would use the raw data from the scanner not MotCor and
using later McFlirt?
Thanks for your time and any suggestions.
Cheers,
Thomas
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