I am running a single regression analysis in SPM2. After running the
correlation analyses I use the VOI function to extract 1st eigenvariates
from a particular cluster for each subject in the analysis. For single
voxel activity for each subject I have been using Plot -> Fitted Responses
-> "Which contrast?" - I have noticed it doesn't make a difference which one
I select -> Adjusted -> Scan or Time. The x-axis of the graphs produced
from these seem to correspond to an average value for each individual
subject. What exactly the values in the y-axis represent is a mystery to
me. I was hoping someone could explain this to me. This question seems to
have been posted previously with respect to the y-axis of "Fitted Responses"
but I could not find a response I totally understood. Thanks in advance.
Patrick
U. Pittsburgh
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