Data
85,067 bulk items are available, covering 80,662 participants.
Defined-instances run from 2 to 3, labelled using Instancing 
2.
The values held within this field are coded links to files held within a bulk repository, not the actual data itself.
 
2 Instances
Instance 2 : Imaging visit (2014+)
80,376 participants, 80,376 items
Data not meaningful for statistical summary
Instance 3 : First repeat imaging visit (2019+)
4,691 participants, 4,691 items
Data not meaningful for statistical summary
 
Notes
The DICOM images were acquired using the following parameters: 
 Resolution: 2.4x2.4x2.4 mm 
Field-of-view: 88x88x64 matrix 
Duration: 4 minutes (332 timepoints) 
TR: 0.735 s 
TE: 39ms 
GE-EPI with x8 multislice acceleration, no iPAT, flip angle 52 degrees, fat saturation 
 As implemented in the CMRR multiband acquisition, a separate "single-band reference scan" is also acquired. This has the same geometry (including EPI distortion) as the timeseries data, but has higher between-tissue contrast to noise, and is used as the reference scan in head motion correction and alignment to other modalities.
 
2 Related Data-Fields
| Field ID | Description | Relationship | 
| 20225 | Functional brain images - resting -  ... | Field 20225 is the resting counterpart of task-based Current Field | 
| 20249 | Functional brain images - task - NIFTI | Field 20249 was derived from Current Field |