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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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Dear AFNI experts,
I used Isosurface to create a gii surface of marmoset monkey.
I wanted to convert this surface to freesurfer (fs) format so that I can create a flat map using freesurfer.
However, no matter I used Isosurface to create a (-o_fs) fs surface directly, or using ConvertSurface, the resulting fs surface has a wrong orientation than the volume image.
I attached a screensho
by
insularcortex
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AFNI Message Board
Dear experts of AFNI,
I am using AFNI to analyze fmri data where monkey were training to watch movies.
The design was simple, 2.5min resting (no visual stimuls, no rewards) --> 5 min movies watching (with regular rewards) --> 2.5min resting
In total of 10mins, and many runs were collected.
I want to use the data to locate regions that "deactivated" (lower averaged BOLD
by
insularcortex
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AFNI Message Board
Thanks. I have already found the instruction, put a * on the row.
by
insularcortex
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AFNI Message Board
Dear staff of afni,
I was trying to use uber_subject.py to analyze tasked-based (block-design) fMRI data.
The data has for example, have 3 runs and have 4 stimulus types, and thus 4 stimulus timing files.
In each timing file, there should be 3 rows to represent the 3 runs.
However, for example, the second run only have 3 stimulus types, then for the timing file, there would be on
by
insularcortex
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AFNI Message Board
Thanks a lot for the good function! That makes sense.
by
insularcortex
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AFNI Message Board
Hi, Gang,
If I understood correctly, for the 3dMEMA:
-set SETNAME \
SUBJ_1 BETA_DSET T_DSET \
SUBJ_2 BETA_DSET T_DSET \
... ... ... \
SUBJ_N BETA_DSET T_DSET \
Each data pairs (SUBJ_1 BETA_DSET T_DSET) is for one subject, and then a group analysis (between-subject variability and have a
by
insularcortex
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AFNI Message Board
Thanks for the command. I will go through the document of the 3dMEMA and test it on my data first.
by
insularcortex
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AFNI Message Board
Dear Dr. Gang Chen,
Currently, I am analyzing visual-task fMRI data from a marmoset. It was a simple block design, ~16 sec task (visual stimuli) + ~16 sec resting block (in total of 512 time-points x 2s TR).
We performed the task on many different days (sessions) and in each day has many runs.
The simplest way (and the default way of AFNI?): we wanted to concatenate all sessions & r
by
insularcortex
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AFNI Message Board
Hi, Dr. Gang Chen,
How about the implementation is going?
I just found this post when I was searching "network-based statistic (NBS) + AFNI".
I am also looking for an alternatives for the NBS.
Since 2010, NBS was the mostly-commonly used method that provide a easy solution for network links statical comparison.
However, NBS has many limitations. Besides the way it correct
by
insularcortex
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AFNI Message Board