Hi Gang:

I am writing a 3dMVM script for a scan where a participant saw 6 stimuli. Each stimulus was different but there were 3 categories of stimuli (i.e. CSp, CSm, CSt) and 2 exemplars of each. Thus the stimuli were CSm1, CSm2, CSp1, CSp2, CSt1, CSt2.

My Question: Some of the contrasts I am interested are, for example, ALL of the CSms vs. ALL of the CSps (similar to the emotional vs. neutral pictures in the 3dMVM example 1). I have attached my code and attempted to code this in -gltLabel 10-12. Have I done this correctly? Since the codes do not need to add to 0 I just want to make sure I have not messed this up in any way.

Thanks!
Lauren

3dMVM -prefix /Volumes/SEQUEL_DISS/PRO_AFNI/OUTPUT/derivatives/STATS/whole_brain/MVM_TvsC.nii.gz -jobs 4 \
-bsVars "sex+stait+stais" \
-wsVars "cs" \
-qVars "stait,stais" \
-qVarCenters '38.47058824,41.70588235' \
-SS_type 3 \
-num_glt 12 \
-SC \
-gltLabel 1 csm1-csm2 -gltCode 1 'cs : 1*csm1 -1*csm2' \
-gltLabel 2 csp1-csp2 -gltCode 2 'cs : 1*csp1 -1*csp2' \
-gltLabel 3 cst1-cst2 -gltCode 3 'cs : 1*cst1 -1*cst2' \
-gltLabel 4 csm1-csp1 -gltCode 4 'cs : 1*csm1 -1*csp1' \
-gltLabel 5 csm2-csp2 -gltCode 5 'cs : 1*csm2 -1*csp2' \
-gltLabel 6 csm1-cst1 -gltCode 6 'cs : 1*csm1 -1*cst1' \
-gltLabel 7 csm2-cst2 -gltCode 7 'cs : 1*csm2 -1*cst2' \
-gltLabel 8 csp1-cst1 -gltCode 8 'cs : 1*csp1 -1*cst1' \
-gltLabel 9 csp2-cst2 -gltCode 9 'cs : 1*csp2 -1*cst2' \
-gltLabel 10 csm_all-csp_all -gltCode 10 'cs : 1*csm1 +1*csm2 -1*csp1 -1*csp2' \
-gltLabel 11 csm_all-cst_all -gltCode 11 'cs : 1*csm1 +1*csm2 -1*cst1 -1*cst2' \
-gltLabel 12 csp_all-cst_all -gltCode 12 'cs : 1*csp1 +1*csp2 -1*cst1 -1*cst2' \
-dataTable @table.txt