We are pleased to announce that the HCP is preparing to release data on 500 Subjects in mid/late May 2014. Before the release, we wanted to make you aware of some important considerations:
- All 500 Subjects MRI data are being processed with an updated version of the HCP pipelines (v3.1) incorporating several improvements, including a new surface-based alignment method that improves cross-subject registration (Robinson et al., in revision, see Robinson et al. 2013 for a preview)
- 500 Subjects data will include MRI and behavioral data for subjects previously released in Q1-Q3, and in the MEG1 release, plus additional subjects collected in Q4-Q6
When the 500 Subjects data are released:
- MRI data for all subjects in ConnectomeDB will reflect the switch to v3.1 processing
- new orders of Connectome in a Box will include v3.1 processed MRI data
Due to the processing changes, we recommend that previously released Q1-Q3 MR data not be mixed in analyses with the 500 Subjects MR data (processed with the new v3.1 pipelines). Remember to be sure to keep track of version numbers when analyzing HCP data.
If you will need any of the Q1-Q3 v2.0 processed data that is currently available for download from ConnectomeDB, we suggest you download it before May 15, 2014.
All users of HCP behavioral data:
The HCP uses a behavioral battery which includes several measurements developed by the NIH Toolbox. Due to changes in how the NIH Toolbox calculates some of its scoring, scores for previously released Q1-Q3 HCP subjects will be updated accordingly as part of the upcoming HCP 500 Subjects release set for mid/late May 2014.
Specifically, the measures that will have updated scoring are:
- Oral Reading Recognition Test
- Pattern Comparison Processing Speed Test
- Picture Vocabulary Test
- Motor 4-Meter Walk Gait Speed Test
Most of the changes modestly affect the normative scaled scoring for all subjects. Details on the changes to the scoring can be found here: NIH Toolbox Measure Updates
If you are currently using data from these measures in an analysis of Q1-Q3 subjects, be aware that the subject scoring for these measures in ConnectomeDB will be updated to reflect the changes. If you need the older version scoring data currently available from ConnectomeDB, make sure to download it before May 15, 2014.
Please let us know if you have any questions (firstname.lastname@example.org). Join the hcp-users list here.
We hope you are looking forward to the release!
The WU-Minn HCP Consortium