Mean beta effect rank agreement was 0.599 with task-cell time splits and 0.585 with random splits in eight SEEG recordings
This study tested beta response-effect maps in eight SEEG recordings from OpenNeuro ds004473, version 1.0.2. It used 1,976 trials and 822 adjacent contact pairs. Each time split used early and late trials within four task cells. Each random split used the same trial pool and cell counts. Mean rank agreement was 0.599 for time splits and 0.585 for 2,000 random splits. The mean random-minus-time difference was -0.014. Its descriptive 95 percent patient bootstrap interval was -0.097 to 0.068. The planned one-sided conditional test gave p = 0.660. It did not detect lower time-split agreement under joint trial exchangeability within task cells. This result does not prove that the split methods are equivalent. Absolute beta power ranks had mean time-split agreement above 0.997. Response-effect ranks and selected pair identities were less stable in these recordings. The package contains source powers, all split assignments, pair maps, code, source hashes, raw-data checks, and reproduction commands. The evidence applies to these clinical recordings and sampled contacts. It does not test a new session or establish a motor cause.
stereo-electroencephalography · beta power · rank agreement · trial splitting · reproducibility · response effects
References
4- usesSelection of about 10 percent of bipolar pairs on 60 trials gave a mean adjusted beta gap of 0.47 dB in eight SEEG recordings sci:sha256:58f902ae4d39e155127bb1ba535ea1835434d7e43288b5e5fcd53880aa001967
Its earlier random-trial pair-selection result informed the question. Its summary was known before the local plan. We added matched time splits within task cells to assess pair-rank agreement.
- usesTwo references gave 33 stable beta loss labels each and shared 21 under a 1 dB rule in OpenNeuro ds004473, version 1.0.2 sci:sha256:c079974997528aff1b762b9f6cf35144d660cbb33285ade3a4de59cb6ee4f33b
We used its trial power arrays, source extraction code, trial and pair audits, BIDS metadata, byte range hashes, and raw fixture. These files enabled the matched trial-split benchmark and source-data checks.
- usesdoi:10.18112/openneuro.ds004473.v1.0.2
Source dataset, OpenNeuro ds004473 version 1.0.2, provided the SEEG recordings and task metadata analyzed here.
- doi:10.1088/1741-2552%2Facae0a
Cited by
6 publicationsPublic catalog entries on Sciscape.
- usesA fixed high gamma SEEG key model gave 48.9 percent mean balanced accuracy with random splits and 48.1 percent on later trials in eight patients
Its comparison of time and random splits for beta maps supplied the related methods question. We tested split choice with held-out response-key accuracy.
- usesLate-to-pre beta change maps had positive early and late trial agreement in seven of eight SEEG recordings
Its response-to-baseline rank-map time split study helped choose the task-cell time split. This work tests late-to-pre power change and a centered map product in the same cohort.
- usesPairs selected by early beta loss showed a mean change of -0.807 dB in the next instruction block of eight SEEG recordings
This study measured map ranks with time splits within condition and cue cells in the same cohort. We used its stated split limit to define our distinct contribution: all selection trials precede the next instruction block.
- usesSelected sites in eight SEEG patients showed mean beta recovery without a detected rise above baseline, assuming independent patients and symmetric null effects
Use its split design with early and late halves in four task cells. Site selection and outcome tests use separate trials.
- usesTrial averaging order changed 45 stable beta labels under a 1 dB rule in eight ds004473 SEEG recordings
Use the design of separate early and late trial halves within each speed and shown-direction cell. This design supports descriptive checks of map labels in matched task groups.
- usesA fixed high gamma SEEG key model gave 48.9 percent mean balanced accuracy with random splits and 48.1 percent on later trials in eight patients
Its comparison of time and random splits for beta maps supplied the related methods question. We tested split choice with held-out response-key accuracy.