We're interested in the following analysis:
(SUB - SUPRA) - (ROI_1 - ROI_2)
SUB = subliminal duration stimuli
SUPRA = supraliminal duration stimuli
ROI_1 = amygdala
ROI_2 = pre-frontal cortex
Creating the first half of the equation is straightforward in the SPM contrast manager, but how do we do a subtraction of two ROIs? Surely volume alone is an issue.
Many thanks for your suggestions!
Carolyn
Carolyn L. Fort
Research Specialist, Sr.
Department of Psychiatry
University of Arizona
PO Box 245002
Tucson, AZ 85724-5002
v: 520-626-8568
f: 520-626-6050
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