Hello,

I'm very new to AFNI. I'm trying to use 3dDeconvolve to get beta coefficients for each subject, so that eventually I could map beta onto surface (using Caret) to perform group-level statistics.

My experiment has 8 blocks, and 9 conditions are randomized.

3dDeconvolve -input Run1+orig Run2+orig Run3+orig Run4+orig Run5+orig Run6+orig Run7+orig Run8+orig -nfirst 0 -num_stimts 9 -basis_normall 1 \
-stim_times 1 ../regressors/ss4pro_byBlock.txt 'SPMG' -stim_label 1 ss4pro \
-stim_times 2 ../regressors/ss4anti_byBlock.txt 'SPMG' -stim_label 2 ss4anti \
-stim_times 3 ../regressors/ss4rotate_byBlock.txt 'SPMG' -stim_label 3 ss4rotate \
-stim_times 4 ../regressors/ss8pro_byBlock.txt 'SPMG' -stim_label 4 ss8pro \
-stim_times 5 ../regressors/ss8anti_byBlock.txt 'SPMG' -stim_label 5 ss8anti \
-stim_times 6 ../regressors/ss8rotate_byBlock.txt 'SPMG' -stim_label 6 ss8rotate \
-stim_times 7 ../regressors/ss12pro_byBlock.txt 'SPMG' -stim_label 7 ss12pro \
-stim_times 8 ../regressors/ss12anti_byBlock.txt 'SPMG' -stim_label 8 ss12anti \
-stim_times 9 ../regressors/ss12rotate_byBlock.txt 'SPMG' -stim_label 9 ss12rotate \
-iresp 1 irf_ss4pro.irf \
-iresp 2 irf_ss4anti.irf \
-iresp 3 irf_ss4rotate.irf \
-iresp 4 irf_ss8pro.irf \
-iresp 5 irf_ss8anti.irf \
-iresp 6 irf_ss8rotate.irf \
-iresp 7 irf_ss12pro.irf \
-iresp 8 irf_ss12anti.irf \
-iresp 9 irf_ss12rotate.irf \
-fitts full_model.fit -errts residual_error.fit \
-rout -fout -tout -bucket decon_results

output bucket is something like (when I overlay onto anatomical):
#0: Full_R2
#1: Full_Fstat
#2: ss4pro#0_Coef
#3: ss4pro#0_Tstat
#4: ss4pro#1_Coef
#5: ss4pro#1_Tstat
#6: ss4pro#1_R2
#7: ss4pro#1_Fstat
#8: ss4anti#0_Coef...
...
#55: ss12rotate#1_Fstat

I'm guessing "Coef" are the variables I want to use for surface, but I don't know why there are 2 (#0 and #1) for each condition. Is my command specifying this without my noticing?

Although I found "How To" under Documentation helpful, I'm having difficult time learning about some of the options. Are there more manuals hidden somewhere? Ideally with examples?

I'm sorry about the long question and thanks in advance for your help.
Akiko