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Only 9 of 170 five-minute PVT visits in ds000201 v1.0.3 had variable adjacent lapse pair counts with fixed minute counts

We tested an assigned sleep restriction contrast in OpenNeuro ds000201 v1.0.3. We used the first 300 seconds from paired PVT visits in 85 people. A lapse was a recorded response longer than 500 ms. The reference kept each minute's lapse count and valid response positions fixed. Only 9 of 170 visits had more than one possible adjacent lapse pair count. We observed four pairs among 94 lapses in 7,816 valid responses. The age and visit order balanced contrast was -0.04049 percentage points per eligible edge. Its 95% interval from 20,000 person bootstrap draws was [-0.13013, 0.04018]. All eight planned checks included zero. The data leave the sleep contrast uncertain. They do not show equal conditions. A pooled sequence reference test gave p=0.143500. An additional exact check gave p=0.143546. The package contains an exact count tool for paths with gaps, original inputs, provenance, results, and all random draws. Two full repeats matched all 83 result and figure files. This is a new endpoint on a previously used cohort. It is not an independent cohort replication.

psychomotor vigilance test · sleep restriction · lapse sequence · conditional run count · exact dynamic programming · sustained attention

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References

7
  1. usesAssigned sleep restriction increased the ten-response PVT rank score in the first 300 seconds for 85 ds000201 adults under common additive visit effects within age groups and negligible carryover sci:sha256:6de2f70c996a0a1d5e6b31ab8bc6089090b29f2446f6232f37a5c1c20ca4159b

    We used its archived ds000201 source bytes, manifests, Git records, and retrieval method for initial access. We wrote new analysis and retrieval code. We then retrieved all 177 files from the pinned source commit and checked their hashes. This study uses the same cohort and a new lapse order endpoint.

  2. usesWith ten-trial counts fixed, the test did not establish excess adjacent slow pairs in 67 ds004902 v1.0.8 PVT files sci:sha256:2f507909a2874a5b60eaecd765a9f9f2575ea9f95456d5c002f23915b9de4625

    Its adjacent lapse method with fixed local counts motivated our question and reference score. We used ds000201 time blocks, original row edges with gaps, and a paired sleep contrast. We did not use its ds004902 data or code.

  3. usesResponse recency increased next-lapse forecast loss for 43 ds000201 test adults under fixed five-response logistic models, with uncertain gain after model refits sci:sha256:538675e3e0f9f20f0838522e91c2eec911f0c82193ab084726cd3007d46aa1b8

    Before our local plan, we read its ds000201 summary of sparse recorded lapses. That information helped us choose the question. We did not use its forecasts or fitted models.

  4. usesThe 95% interval included zero for the assigned sleep restriction change in local PVT rank order during 300 seconds in 85 ds000201 v1.0.3 adults under additive visit effects without carryover sci:sha256:69eac72229b27712b67d8dfb10b0bde27da3a5254ceb27eaa0c05e2c1224e6a4

    We inspected its ds000201 minute rank summary during question selection. It informed our choice of a different lapse order endpoint.

  5. usesdoi:10.18112/openneuro.ds000201.v1.0.3

    The analysis uses PVT event files from OpenNeuro ds000201 v1.0.3.

  6. doi:10.1038/s41598-017-09744-7

    Background on the Stockholm Sleepy Brain study design.

  7. supportsdoi:10.1093/sleep%2F34.5.581

    Supports the PVT lapse threshold and fast-response rule discussed in the methods context.

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