afni.nimh.nih.gov
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:
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
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
| April 01, 2023 03:56PM | |
This notice is part of our continuing AFDI.*
Recently, the AFNI team published our recommendations for quality control in FMRI.
https://www.frontiersin.org/articles/10.3389/fnins.2022.1073800/full
In this paper, we examined several FMRI datasets from open repositories. While we now pretty much expect a left-right flipping error in new data, we were surprised to find some subject brains appeared upside down. The eagle-eyed among AFNI users will see this in two subjects below.
Since that publication, it has come to our attention from our colleagues "down under" in Australia and New Zealand that this is, in fact, their standard. While they prefer to remain anonymous, they sent us this dataset. Surprisingly, the "upside-downness" is correct for this set.
They are not sure of why this happens, but they describe it as something akin to the coriolis effect seen in water drains, and call it the "boomerang effect".
QC of the Australian datasets revealed an outlier.... Our local Kiwi, Peter Lauren, commented, "this doesn't surprise me one bit."
*AFDI
Recently, the AFNI team published our recommendations for quality control in FMRI.
https://www.frontiersin.org/articles/10.3389/fnins.2022.1073800/full
In this paper, we examined several FMRI datasets from open repositories. While we now pretty much expect a left-right flipping error in new data, we were surprised to find some subject brains appeared upside down. The eagle-eyed among AFNI users will see this in two subjects below.
Since that publication, it has come to our attention from our colleagues "down under" in Australia and New Zealand that this is, in fact, their standard. While they prefer to remain anonymous, they sent us this dataset. Surprisingly, the "upside-downness" is correct for this set.
They are not sure of why this happens, but they describe it as something akin to the coriolis effect seen in water drains, and call it the "boomerang effect".
QC of the Australian datasets revealed an outlier.... Our local Kiwi, Peter Lauren, commented, "this doesn't surprise me one bit."
*AFDI
| Subject | Author | Posted |
|---|---|---|
|
Daniel Glen | April 01, 2023 03:56PM |
