Hello List,
I am doing a SPECT analysis (paired t-test) with spm2 and I would like to get the value of the activity in the clusters, that analysis showed were significant. In my case I would expect the activity in the cluster to be higher post-therapy (2nd images of Patients), but it seems not to be, or I don't understand it...
I understand that Eigenvariate produced by the VOI is connected to activity value. The Eigenvariates of my significant clusters have values of about 60 or 70.
My question is: What is the unit of the Eigenvariate? In what order are the values of Eigenvariate given? (is it: from 1st image of Patient1; 2nd image of Patient1; 1st image of Patient2;... ? )
Thank you in advance,
Petra
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