Dear SPM users,
I have a question about designing a model using patients with 2 scan
conditions in 2 different groups.
I am looking changes in blood flow in patients with epilepsy using SPECT
scans. I have a "during seizure" (ictal) state and an "in-between"
seizure (interictal) state for each patient(n=51). These patients have
been grouped according to their time of "injection before seizure ends"
and "after seizure ends". Within the groups I want to look at a simple
subtraction of increases vs. decreases of blood flow. However, I also
want to look at the differences between groups. Any ideas on how I
would set up my model.
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