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Question Posted 07/17/22:
Hello experts,

I am working on ADNI fMRI data and using the "MAYOADIRL_MRI_FMRI_NFQ_05_09_22.csv" spreadsheet to find out the slice timing as suggested in previous posts. However, the slice timing is not in BIDS format (< the TR and slice timing value 1 does not equal 0) and is incompatible with preprocessing software.
My question is how do I know when time is 0 and is it possible for me to assume that the first slice timing value is time = 0. This way I could subtract the first value from all values to get the slice timing in BIDS format.

Response posted 07/18/22 by Jeff:
It's probably ok to take the minimum time and subtract that off to get a zero time. As ADNI has no physio monitoring, absolute time is largely irrelevant.
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