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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Gang Chen
September 21, 2005 03:50PM
Hi Chuck,

In your command line

AlphaSim –nx 161 –ny 191 –nz 151 –dx 3.125 –dy 3.125 –dz 6 –iter 1000 –rmm 15.1 –pthr 0.001 –out Output.txt

the dimensions of the image (161, 191, 151) and the voxel size of 3.125X3.125X6 are not consistent. To avoid the problem, you might consider creating a mask so that AlphaSim can obtain both the image dimensions and voxel size automatically from the mask file.

There is some controversial issue here. Doug Ward always recommends running multiple comparison correction with the original data parameters. However the group analysis is really done in tlrc space. So the correction might still be done in the tlrc space through the control of connectivity radius (option -rmm in AlphaSim).

Gang
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Subject Author Posted

RE: AlphaSim

Chuck September 21, 2005 01:07PM

RE: AlphaSim

Gang Chen September 21, 2005 03:50PM

RE: AlphaSim

Chuck September 22, 2005 07:56AM

RE: AlphaSim

Gang Chen September 22, 2005 10:28AM