Hello AFNI Experts,
I would like to examine activation within the amygdala subregions (centromedial amygdala, basolateral amygdala) to different stimuli (CS+, CS- in a fear conditioning paradigm). I have probability information, so that I know which voxels are least likely to compose of each of the subregions and which voxels have the lowest probability. I would like to incorporate this probability information into my analysis. I would like for example, voxels that are more likely to compose a subregion to carry more weight to the averaged BOLD activation than voxels less likely to compose the subregion. I have averaged tents for the CS+ and CS-. Can I simply multiply the probability weights with each of these tents. Then run 3dROI stats as usual on the probability weighted tents to get the averaged BOLD activation? I hope this is making sense. I would appreciate any guidance.
Thanks,
Emily
