Dear SPMers,
I am analyzing fMRI data from 2 paradigms (supposed to activate similar
but not exactly the same brain functional area) of individual subjects.
I have tried two methods to analyze the data by SPM:
1) rum SPM separately on data from each paradigm;
2) put the 2 paradigms into one design matrix but define them as 2 sessions.
The results from the second method somewhat represent the combination of
the resultes from analyzing the paradigms separately (the first method).
I am wondering which method is more appropriate in this case. And I
really appreciate it if somebody could recommend some documents that
explain session effect in running SPM.
Thanks very much.
Yanmei
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