Dear list members.
We are having some troubles in analyzing data in SPM2. The data was obtained
in sparse temporal sampling technique.
TR = 14 sec, Acquisition time is 3 sec( one whole brain set) i.e. MRI scan
of 3 sec > no scan interval of 11 sec > MRI scan of 3 sec > ....
1) When we adjust slice timing in preprocessing, the TR required in SPM2 is,
in my case, 14 sec.or 3 sec.?
2) How can we achieve no-hrf-convolving design in MRI design phase in SPM2?
Previous studies said that they did not convolve hrf with data from sparse
sampling.
In addition, I hope someone knows the way to convolve " mean and exponential
delay " with data in SPM2.
3) Does anyone know how much low cut (i.e. High pass) filter is appropriate
in sparse temporal sampling?
I would be happy to get any kind of help.
T.W.
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Takamitsu WATANABE
Faculty of Medicine,
The University of Tokyo
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