Hi All,
So, I'm new to fMRI analysis and especially sparse sampling for auditory experiments and would really appreciate some help on how to do the pre-processing for this data set. My data was acquired with a TR of 3s with a TA of 1.5s which is what I use when I perform slice time correction (corrected to the middle slice). The design was specified in seconds and each event is specified with a duration of 0. For the microtime resolution settings i'm setting SPM.T to the number of slices (28) and SPM.T0 (14).
Beyond if things are generally correct, I'm wondering if:
1) I should be performing slice time correction
2) If I set the TR and TA differently, how does SPM know if data were acquired in the first or second half of the TR
3) Should I be using a HRF (as I currently am) or FIR, etc.
I greatly appreciate any input and thanks for your time!
-Sri
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