thanks for your response. Am I correct in assuming that the microtime onset
is stored in xBF.T0?
Volkmar Glauche wrote:
> Dear Jan,
> yes, your onsets should match the time of your reference slice. If you
> want to set up a "standard" SPM fMRI design you can do this by adjusting
> the "Microtime Onset" to match the time bin which covers your reference
> slice. Alternatively (or if you want to work with the data outside of
> SPM), you can adjust your onsets and set "Microtime Onset" to 1.
> Am Samstag, den 05.04.2008, 12:37 -0700 schrieb Jan Gläscher:
>> Dear SPM experts,
>> I want to extract data from slice-timed images and specifying onsets
>> (manually) for an FIR. Do I have to shift my onsets w.r.t to the reference
>> slice during slice timing?
>> For example, let's assume that I have a TR of 3 secs and I used the middle
>> slice as the reference bin during slice timing. If I extract a time series
>> from these images, do I have to shift my onsets w.r.t. to the reference bin
>> (in this example add 1.5 sec to each onset in order to align them with the
>> time series?
Jan Gläscher, Ph.D. Div. Humanities & Social Sciences
+1 (626) 395-3898 (office) Caltech, Broad Center, M/C 114-96
+1 (626) 395-2000 (fax) 1200 California Blvd
[log in to unmask] Pasadena, CA 91125