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q-bio.NC · Neurons and Cognition

Adding two seconds to scan times reversed the response minus retention difference in FD above 0.2 mm in 424 selected AOMIC working memory runs

We tested motion in 424 selected AOMIC working memory runs from two public cohorts. Framewise displacement (FD) estimates change between scan positions. With scan times that start at zero, FD above 0.2 mm was more common near recorded responses than during retention. The mean difference was 2.37 percentage points in PIOP1 and 1.20 points in PIOP2. Both 95% person bootstrap intervals were above zero. Adding two seconds to every scan time reversed both differences. The public response converters and event dictionaries gave the same motion rows under the tested rules. The result therefore depends on the assumed scan clock. It does not establish a causal effect of a button response or a neural effect. The package preserves source inputs, timing rules, all estimates, code, and checks. A fresh source download reproduced all 13 result files exactly.

framewise displacement · head motion · working memory · scan timing · AOMIC · motion quality control

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References

6
  1. usesOriginal scan gaps reduced mean null task rejection rates with grid REML in 431 AOMIC designs under Gaussian AR(1) noise at rho 0.6 sci:sha256:6734dc4fe43db1218ccde67bd03e29b0df9078bc428c527f70ce5fe633b35676

    This publication supplied the event and selected motion archives, fixed source manifests, and two retrieval programs. We used those inputs and downloaded the fixed sources again. We did not use its simulated outcomes.

  2. usesTwo miss scoring rules reverse 16.4% of strict score pairs in 190 PIOP1 working memory records sci:sha256:5f25798af2b6ad0af87454f27aa44f340f851520dd28c4fe6e4e537ec92625f9

    This source audit had reported the PIOP1 response code and dictionary discrepancy and the PIOP2 missing-response hand issue. It guided the separate converter clock check. The present result tests within-trial motion and does not claim discovery of those source issues.

  3. 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

    Its whole-trial motion coverage comparison motivated the question about response and retention intervals within a trial. We inspected its scope. We did not reuse its outcome estimates.

  4. usesdoi:10.18112/openneuro.ds002785.v2.0.0

    The analysis uses PIOP1 source files from ds002785 version 2.0.0.

  5. usesdoi:10.18112/openneuro.ds002790.v2.0.0

    The analysis uses PIOP2 source files from ds002790 version 2.0.0.

  6. doi:10.1038/s41597-021-00870-6

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