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April 17, 2019 08:56AM
Hello,

I created regressors to model when participants made a (1) correct response (2) incorrect response (3) did not respond at all. My regressors are structured as such: (stimulus onset): (duration).

I have time points for the "correct responses" and "incorrect responses" regressors, but sometimes I don't have any time points for the "did not respond at all" regressors. As a result, my 3dDeconvolve was not running. To alleviate this issue, I inserted "-1:1" for each of my runs in the regressor files without any timing values. With this, I specified "allzero_OK" and 'GOFORIT 10" in my afni_proc script. I just wanted to verify that this was the correct approach?

I also got several error/warnings messages in the 3dDeconvolve.err output as a result of above. I just wanted to make sure that these warnings were "okay" and due to the fact that I specified "-1:1" in my regressors with no actual timing information. Since I specified "GOFORIT 10", I want to make sure that 3dDeconvolve isn't bypassing other errors.

Thank you very much,
Tamara



3dDeconvolve.err

*+ WARNING: '-stim_times_AM1 19' didn't read any good times from file 'stimuli/NonRevP_perf_NoResp.txt'
*+ WARNING: '-stim_times_AM1 20' didn't read any good times from file 'stimuli/NonRevP_perf_NoResp_fed.txt'
*+ WARNING: '-stim_times_AM1 23' didn't read any good times from file 'stimuli/RevP_rev_NoResp.txt'
*+ WARNING: '-stim_times_AM1 24' didn't read any good times from file 'stimuli/RevP_rev_NoResp_fed.txt'
*+ WARNING: '-stim_times_AM1 19' (LOCAL) run#1 has 1 times outside range 0 .. 380 [PSFB syndrome]
*+ WARNING: '-stim_times_AM1 19' (LOCAL) run#2 has 1 times outside range 0 .. 380 [PSFB syndrome]
*+ WARNING: '-stim_times_AM1 19' (LOCAL) run#3 has 1 times outside range 0 .. 380 [PSFB syndrome]
*+ WARNING: '-stim_times_AM1 19' (LOCAL) run#4 has 1 times outside range 0 .. 380 [PSFB syndrome]
*+ WARNING: !! '-stim_times_AM1 19' file 'stimuli/NonRevP_perf_NoResp.txt' has no good stimulus time values
*+ WARNING: '-stim_times_AM1 20' (LOCAL) run#1 has 1 times outside range 0 .. 380 [PSFB syndrome]
*+ WARNING: '-stim_times_AM1 20' (LOCAL) run#2 has 1 times outside range 0 .. 380 [PSFB syndrome]
*+ WARNING: '-stim_times_AM1 20' (LOCAL) run#3 has 1 times outside range 0 .. 380 [PSFB syndrome]
*+ WARNING: '-stim_times_AM1 20' (LOCAL) run#4 has 1 times outside range 0 .. 380 [PSFB syndrome]
*+ WARNING: !! '-stim_times_AM1 20' file 'stimuli/NonRevP_perf_NoResp_fed.txt' has no good stimulus time values
*+ WARNING: '-stim_times_AM1 23' (LOCAL) run#1 has 1 times outside range 0 .. 380 [PSFB syndrome]
*+ WARNING: '-stim_times_AM1 23' (LOCAL) run#2 has 1 times outside range 0 .. 380 [PSFB syndrome]
*+ WARNING: '-stim_times_AM1 23' (LOCAL) run#3 has 1 times outside range 0 .. 380 [PSFB syndrome]
*+ WARNING: '-stim_times_AM1 23' (LOCAL) run#4 has 1 times outside range 0 .. 380 [PSFB syndrome]
*+ WARNING: !! '-stim_times_AM1 23' file 'stimuli/RevP_rev_NoResp.txt' has no good stimulus time values
*+ WARNING: '-stim_times_AM1 24' (LOCAL) run#1 has 1 times outside range 0 .. 380 [PSFB syndrome]
*+ WARNING: '-stim_times_AM1 24' (LOCAL) run#2 has 1 times outside range 0 .. 380 [PSFB syndrome]
*+ WARNING: '-stim_times_AM1 24' (LOCAL) run#3 has 1 times outside range 0 .. 380 [PSFB syndrome]
*+ WARNING: '-stim_times_AM1 24' (LOCAL) run#4 has 1 times outside range 0 .. 380 [PSFB syndrome]
*+ WARNING: !! '-stim_times_AM1 24' file 'stimuli/RevP_rev_NoResp_fed.txt' has no good stimulus time values
*+ WARNING: -------------------------------------------------
*+ WARNING: Problems with the X matrix columns, listed below:
*+ WARNING: * Column 34 [NonRevP_perf_NoResp#0] is all zeros
*+ WARNING: * Column 35 [NonRevP_perf_NoResp_fed#0] is all zeros
*+ WARNING: * Column 38 [RevP_rev_NoResp#0] is all zeros
*+ WARNING: * Column 39 [RevP_rev_NoResp_fed#0] is all zeros
*+ WARNING: -------------------------------------------------
*+ WARNING: !! in Signal+Baseline matrix:
* Largest singular value=2.26308
* 4 singular values are less than cutoff=2.26308e-07
* Implies strong collinearity in the matrix columns!
*+ WARNING: !! in Signal-only matrix:
* Largest singular value=1.41868
* 4 singular values are less than cutoff=1.41868e-07
* Implies strong collinearity in the matrix columns!
*+ WARNING: !! 3dDeconvolve -GOFORIT is set to 10: running despite 6 matrix warnings
*+ WARNING: !! See file 3dDeconvolve.err for all WARNING and ERROR messages !!
*+ WARNING: !! Please be sure you understand what you are doing !!
*+ WARNING: !! If in doubt, consult with someone or with the AFNI message board !!
*+ WARNING: Smallest FDR q [8 NonRevP_learn_incor_fed#0_Tstat] = 0.151891 ==> few true single voxel detections
*+ WARNING: Smallest FDR q [9 NonRevP_learn_incor_fed_Fstat] = 0.151417 ==> few true single voxel detections
*+ WARNING: Smallest FDR q [11 NonRevP_learn_incor#0_Tstat] = 0.102402 ==> few true single voxel detections
*+ WARNING: Smallest FDR q [12 NonRevP_learn_incor_Fstat] = 0.102401 ==> few true single voxel detections
*+ WARNING: Smallest FDR q [53 NonRevP_learn_NoResp_fed#0_Tstat] = 0.143557 ==> few true single voxel detections
*+ WARNING: Smallest FDR q [54 NonRevP_learn_NoResp_fed_Fstat] = 0.14304 ==> few true single voxel detections
*+ WARNING: mri_fdrize: will not process only 0 values (min=20)
*+ WARNING: mri_fdrize: will not process only 0 values (min=20)
*+ WARNING: mri_fdrize: will not process only 0 values (min=20)
*+ WARNING: mri_fdrize: will not process only 0 values (min=20)
*+ WARNING: Smallest FDR q [62 RevP_acq_NoResp#0_Tstat] = 0.214525 ==> few true single voxel detections
*+ WARNING: Smallest FDR q [63 RevP_acq_NoResp_Fstat] = 0.213817 ==> few true single voxel detections
*+ WARNING: Smallest FDR q [65 RevP_acq_NoResp_fed#0_Tstat] = 0.828139 ==> few true single voxel detections
*+ WARNING: Smallest FDR q [66 RevP_acq_NoResp_fed_Fstat] = 0.825204 ==> few true single voxel detections
*+ WARNING: mri_fdrize: will not process only 0 values (min=20)
*+ WARNING: mri_fdrize: will not process only 0 values (min=20)
*+ WARNING: mri_fdrize: will not process only 0 values (min=20)
*+ WARNING: mri_fdrize: will not process only 0 values (min=20)
Subject Author Posted

Regressors with no responses

tamtam April 17, 2019 08:56AM

Re: Regressors with no responses

rick reynolds April 17, 2019 03:55PM

Re: Regressors with no responses

tamtam April 20, 2019 02:52PM

Re: Regressors with no responses

rick reynolds April 20, 2019 09:56PM

Re: Regressors with no responses

tamtam April 23, 2019 08:34AM