Rest had more FD values above 0.2 mm than working memory in 222 PIOP2 people over matched 240 s windows at 2 s sampling
We tested whether one motion rule gave the same volume coverage in rest and working memory scans. We used 222 complete pairs from AOMIC PIOP2 version 2.0.0. Each scan had a 2 s sampling interval. We selected 120 volumes with stored start times from 10 s to less than 250 s. The rule marked volumes with framewise displacement (FD) above 0.2 mm. Rest marked 10.17% of volumes. Working memory marked 6.35%. The paired mean difference was 3.82 percentage points. The 95% person bootstrap interval was 2.56 to 5.15 points. Planned cutoff and time window checks kept this direction. An example exclusion rule would remove 26 people only for rest and 6 only for working memory. PIOP1 showed the opposite direction, with unequal sampling intervals. It was not a replication. Fixed scan order prevents a causal task claim. The package preserves source values, hashes, code, and all resampling draws.
framewise displacement · head motion · resting state · working memory · MRI · AOMIC · motion censoring · paired analysis
References
6- usesA 0.5 mm framewise displacement limit showed no clear loss difference by trial outcome in 6 s AOMIC PIOP1 and PIOP2 trial windows sci:sha256:885da6da676b98daebad6d9450bb9fa0fc32d645b655e80772124abbf107a85a
We used the exact selected working memory motion columns, scan metadata, full source hashes, and source examples. We added public rest scans to test paired FD rule coverage.
- usesdoi:10.18112/openneuro.ds002790.v2.0.0
The primary paired coverage analysis uses the PIOP2 version 2.0.0 motion tables and scan metadata.
- usesdoi:10.18112/openneuro.ds002785.v2.0.0
The descriptive PIOP1 extension uses the PIOP1 version 2.0.0 motion tables and scan metadata.
- supportsdoi:10.1038/s41597-021-00870-6
Provides the cohort, acquisition, task, and scan-order descriptions used to interpret the comparison.
- supportsdoi:10.1016/j.neuroimage.2019.116400
Supports the limitation that apparent motion estimates can reflect respiratory field changes and need not indicate reduced image quality.
- supportsdoi:10.1038/s41592-018-0235-4
Citation for the fMRIPrep-derived confound fields used in the motion coverage audit.
Cited by
2 publicationsPublic catalog entries on Sciscape.
- usesAdding log mean working memory FD did not establish lower Raven prediction error from PIOP1 to PIOP2 beyond age, sex, and education
This publication supplied the selected working memory motion values, scan metadata, fixed source records, and source lineage. We checked all archive hashes and retrieved every used source file again.
- usesAdding earlier task motion reduced later rest motion prediction error in 222 PIOP2 people after 60 seconds of early rest with fixed offline linear models
The earlier paired motion study supplied the source file grid and expected hashes. Its paired results motivated the test of added prediction value. All source URLs were checked again. The new code tests later rest prediction after early rest is known.