Hi all,
We are currently running our resting state fmri data with different slice timing options because we aren't 100% certain what acquisition parameters were used. When we run the data using different slice timing options (none, regular descending, ascending odd interleaved) we get the exact same time series at a single voxel when compared across different slice timings. It appeared as if SPM wasn't doing any slice timing correction. So we then checked the batch files and looked at the scripts in MATLAB and from appearances it looks like none of the information I entered regarding slice timing was even used. We can't find anywhere in the batch file where the slice order we used is located. Yet, upon loading the batch file into the SPM GUI it clearly shows the slice orders that I entered under the slice timing module. Can anyone give any insight into what might be causing this problem?
Thanks for your help!
|