Dear AFNI experts,
I ran the following group analysis after applying a TENT model to estimate brain activity:
3dMVM \
-prefix groupAna_factor1 \
-wsVars 'A*B*Time' \
-wsMVT \
-bsVars 'factor1' \
-qVars 'factor1' \
-qVarCenters '0' \
-dataTable \
Subj A B Time factor1 InputFile \
S1 A1 B1 t1 0.1968 ../S1/SoA_S1_GAM.results/stats.SoA_S1_GAM_REML+tlrc'[SA#1_Coef]' \
S2 A1 B1 t1 0.8258 ../S2/SoA_S2_GAM.results/stats.SoA_S2_GAM_REML+tlrc'[SA#1_Coef]' \
…
To note: A and B have two levels (A1, A2; B1, B2), Time has four levels (t1, t2, t3, t4).
After this analysis, I have two cluster-corrected maps of interest: the interaction of Axfactor1 and Bxfactor1.
Now I need to represent in a scatter plot(s) the interactions within the significant clusters (for example: factor1 is related to brain activity in the significant cluster, but only for the first level of A -A1-, and not for the second level of A -A2-).
I was wondering - following the multivariate model - which is the correct way to extract data across time in order to represent such interaction. Do you think that timepoints (t1-t4) should be sipmly averaged? Any suggestion is appreciated.
Thanks in advance,
Simone