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

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LuisaBoh
June 12, 2020 01:47PM
Hello AFNI experts

I am working in an emotional fMRI task. I am interested to see the activations in different contrasts: faces vs shapes, anger vs neutral, fear vs neutral, fear+anger vs neutral.

I have the stats for the faces vs shapes, anger vs neutral, fear vs neutral, which are activation maps generated running 3dDeconvolve (the bucket output).
I made 3dcalc -a file’[39]’ -expr “a*step(a)” -prefix new_file.nii to calculate the voxels greater than 0 considering that Im interested in faces>shapes, anger>neutral, fear>neutral. Please correct me if Im doing something wrong.

Now I want to calculate the anger+fear activation map but I am confused how to average this. Could you please provide me any advices?

Thank you
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Subject Author Posted

3dDeconvolve

LuisaBoh June 12, 2020 01:47PM

Re: 3dDeconvolve

gang June 12, 2020 03:10PM