Dear AFNI rockstars,
I'd like to see if and how brain activation patterns for naming object pictures change with certain parameters of the pictures. For instance, I've got a measure of visual complexity for all the pictures, and I'd like to see if activation in certain areas of the subjects' brains increases when they name object pictures of increasing visual complexity.
For a PET study of spontaneous narrative production, I successfully submitted values for various psycholinguistic measures as regressors, along with the PET images of subjects' brains, in a linear regression analysis in MEDx. The results were lovely maps showing areas of the brain correlated with each of the scores. Could the same be done in AFNI? And if so, would it require an ROI analysis?
Thank you!
Yours,
Whitney