Dear SPM Team,
I have been using SPM for the past 2 to 3 years for various fMRI analyses. I am grateful for the opportunity to use such a great product (SPM5/8) at no cost.
For the last half-year, I have been working on auditory fMRI experiments. These experiments require temporal fMRI acquisition schemes that scan a number or "cluster" of fMRI images at a time, with a time delay between clusters facilitation the presentation of auditory stimuli. Perhaps the most advanced of such aquisition schemes is the interleaved silent steady state (ISSS) method [NeuroImage 29 (2006) 774 – 782].
I have been trying to come up with a way of analysing ISSS data in SPM8. I have even posted one or two messages asking for help on this forum, and have seen a few posts about the older "sparse sampling" method (where the cluster has only one image volume). A recurring theme in replies to the sparse sampling posts is that SPM is not really suited to these temporal acquisition schemes.
If this recurring theme is true, I have a humble request to make for the next version of SPM. Could you please include features that would facilitate analyses of ISSS and sparse sampling fMRI data? I do need such features urgently, and I am sure my request applies to the entire auditory fMRI community.
Thank you very much,
Kwaku Akrofi, PhD
Department of Speech and Hearing Science
University of Illinois at Urbana-Champaign
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