Hi,

First thanks for making this data available.

It would seem that subject# sub24528 is duplicated between these two sites:

harold:ANDI-TFCN$ grep sub24528 incoming/meta/*
incoming/meta/NewYork_a_demographics.txt:sub24528 21 45 m
incoming/meta/Oxford_demographics.txt:sub24528 7 29 m

I presume this was not intended?

Thanks


--
Andrew Janke - andrew.janke@anu.edu.au
Department of Geriatric Medicine, ANU
Canberra->Australia +61 (402) 700 883

Andrew,

Sorry for the confusion. To clarify, each site's subject numbers were anonymized individually. As such, it is possible for two sites to have the same randomly selected subject # assigned, though their site identifiers would differ.

Best,
Mike

This is a small problem for us too. Within the 3T data, there are actually two non-unique datasets subject 24528, as Andrew noted, and subject 68050. If it would not be too difficult, the data will be more flexibly dealt with if the subject ID's were unique across sites. Because the numbers are not contiguous within sites, and the great majority of files are unique, we assumed the numbering to be constructed to give unique ID numbers.

Subject sub24528 is not unique. Found in /Volumes/elrond/share/data/fcon_1000/alldata/3.0T/NewYork_a_subjects.txt /Volumes/elrond/share/data/fcon_1000/alldata/3.0T/Oxford_subjects.txt
Subject sub68050 is not unique. Found in /Volumes/elrond/share/data/fcon_1000/alldata/3.0T/Bangor_subjects.txt /Volumes/elrond/share/data/fcon_1000/alldata/3.0T/Leiden_2200_subjects.txt
2 subjects found in multiple sites

Besides these non-unique IDs, several subject datasets are missing; that is there are subject IDs listed in the subjects.txt file but no corresponding dataset. This was noticed by Peggy Christidis here. Can you verify this?

missing files for subject sub58867
missing 1 subject sets from /Volumes/elrond/share/data/fcon_1000/alldata/3.0T/Cambridge_Whitfield-Gabrieli_subjects.txt
missing files for subject sub18698
missing 1 subject sets from /Volumes/elrond/share/data/fcon_1000/alldata/3.0T/Leipzig_subjects.txt
missing files for subject sub45138
missing files for subject sub75361
missing 2 subject sets from /Volumes/elrond/share/data/fcon_1000/alldata/3.0T/Taipei_a_subjects.txt

Hi Daniel,

I just verified the subjects and files you indicated in the files that we prepared for the release.

The Cambridge_Whitfield-Gabrieli subject has all files.
The Leipzig subject does not have an mprage-anonymized as indicated in the readme file (the anonymization did not work for the Leipzig subjects), but both other files are present.
sub45138 of Taipei_a does not have a rest.nii.gz (as indicated in the readme file, we did not receive a rest.nii.gz for this subject)
sub75361 of Taipei_a has all files

As such, I'm not sure what might be going on here as the released files seem to be correct. I downloaded Leipzig as a test and confirmed what I had for our release-prepared files.

Best,
Maarten

I am not sure what happened either. I re-extracted the files from the tar files, and those are okay. Thanks.

So just for anyone else writing scripts to handle these datasets:

2 non-unique subject IDs
sub24528 (NewYork_a, Oxford), sub68050 (Bangor, Leiden_2200)
1 missing rest dataset
sub45138 (Taipei_a)

Do not forget to check the readme files that are present for certain sites. e.g., for some sites, some rest.nii.gz scans have less timepoints compared to the other participants in the site.

We provided a readme file for each site that had something 'special' in some of their data. If there is no readme file for a site, all files should be present and have equal characteristics.

Maarten