AFNI Message Board

Dear AFNI users-

We are very pleased to announce that the new AFNI Message Board framework is up! Please join us at:

https://discuss.afni.nimh.nih.gov

Existing user accounts have been migrated, so returning users can login by requesting a password reset. New users can create accounts, as well, through a standard account creation process. Please note that these setup emails might initially go to spam folders (esp. for NIH users!), so please check those locations in the beginning.

The current Message Board discussion threads have been migrated to the new framework. The current Message Board will remain visible, but read-only, for a little while.

Sincerely, AFNI HQ

History of AFNI updates  

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February 19, 2022 03:22AM
Hi AFNI folks,

Hoping for some guidance on 2 things:

1. In running some task based ROI-to-Wholebrain results through the simple Correlation approach outlined by Gang's old webpage (3dDeconvolve > R^2 > R > Z > 3dTtest++), I ended up with very very high internal correlations (see first attached image). What is the proper approach to correct for the massive multiple comparisons? Adding ClustSim into the 3dTtest++ didnt seem to bring things down. Would applying something like 3dFDR be possible?

2. In trying to verify those ROI-to-Wholebrain results from 3dDeconvolve I endeavored to run the same data through 3dTCorr1D. Unfortunately the results are different and nearly look random (see second image). Not even the original seed region (primary auditory cortex) was correlated with itself. I am posting both sets of scripts below, but 3dTcorr1D is so simple I can't figure out what could have gone wrong. Any input or assistance here greatly appreciated.

Thanks as always,

~Dane

3dDeconvolve \
-force_TR 2.5 \
-input ${subj}_prepro_all+tlrc. \
-polort 2 \
-mask ${subj}_s4_vr_zp4_cardnudg_e2a_amsk+tlrc. \
-censor $censorfile/${subj}_autocensor_AC3VC_pre-moco.1D \
-nfirst 0 \
-GOFORIT 5 \
-num_stimts 1 \
-stim_file 1 ${subj}_prepro_all_stim5c_dmbfitts_3dSynthRemvBase_StrgClean_${ROI}_Timeseries.1D -stim_label 1 Strg_Seed${ROI} \
-rout \
-bucket ${subj}_prepro_all_stim5c_dmbfitts_3dSynthRemvBase_StrgClean_${ROI}_roi2wb_r^2map \

----------------- vs ----------------------

3dTcorr1D \
-pearson \
-prefix ${subj}_prepro_all_stim5c_dmbfitts_3dSynthRemvBase_StrgClean_L_PAC_roi2wb_3dTcorr1DTest3+tlrc \
-mask ${subj}_s4_vr_zp4_cardnudg_e2a_amsk+tlrc \
${subj}_prepro_all+tlrc. \
${subj}_prepro_all_stim5c_dmbfitts_3dSynthRemvBase_StrgClean_L_PAC_Timeseries.1D \
Subject Author Posted

Strange ROI-to-Wholebrain FC results

daanderson February 19, 2022 03:22AM

Re: Strange ROI-to-Wholebrain FC results

daanderson February 22, 2022 07:04PM

Re: Strange ROI-to-Wholebrain FC results

Daniel Glen February 23, 2022 12:25PM

Re: Strange ROI-to-Wholebrain FC results

Phil Burton February 23, 2022 01:36PM

Re: Strange ROI-to-Wholebrain FC results

ptaylor February 23, 2022 04:19PM

Re: Strange ROI-to-Wholebrain FC results Attachments

daanderson February 23, 2022 05:23PM

Re: Strange ROI-to-Wholebrain FC results

Daniel Glen February 24, 2022 12:01PM

Re: Strange ROI-to-Wholebrain FC results Attachments

daanderson February 25, 2022 03:23AM

Re: Strange ROI-to-Wholebrain FC results

ptaylor February 28, 2022 08:53AM

Re: Strange ROI-to-Wholebrain FC results

daanderson February 28, 2022 06:21PM

Re: Strange ROI-to-Wholebrain FC results

ptaylor February 28, 2022 08:39PM

Re: Strange ROI-to-Wholebrain FC results

gang March 02, 2022 10:33AM

Re: Strange ROI-to-Wholebrain FC results

daanderson March 02, 2022 02:44PM

Re: Strange ROI-to-Wholebrain FC results

gang March 03, 2022 11:05AM

Re: Strange ROI-to-Wholebrain FC results

daanderson March 04, 2022 05:28PM

Re: Strange ROI-to-Wholebrain FC results

gang March 07, 2022 10:54AM

Re: Strange ROI-to-Wholebrain FC results

daanderson March 09, 2022 03:01PM

Re: Strange ROI-to-Wholebrain FC results

gang March 14, 2022 09:42PM

Re: Strange ROI-to-Wholebrain FC results Attachments

daanderson August 31, 2022 08:42PM

Re: Strange ROI-to-Wholebrain FC results

gang September 01, 2022 05:55PM

Re: Strange ROI-to-Wholebrain FC results

daanderson September 01, 2022 08:02PM

Re: Strange ROI-to-Wholebrain FC results

gang September 02, 2022 01:09PM