Hello:
I ran 3dttest++ on a group of subjects and added BMI as a covariate. I am viewing the effect of BMI in the GUI and I have set a threshold, etc… After "clusterize" I am given many significant clusters…. but the clusters do not represent "activation", correct? They represent brain regions that are influenced by the covariate (BMI)?
The "max intensity" of each cluster seemed very low (between 1 and -1) and it got me thinking about what it was that the max intensity of the covariate is actually reporting… Is it a correlation between the covariate scores and activation in the region?
Any help would be greatly appreciated! Thanks!
