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q-bio.NC · Neurons and Cognition

Selection for recorded keys did not show lower mean offline Brier error in eight cued SEEG records with eight pairs and C=0.1

We used public OpenNeuro ds004473 version 1.0.2 data from eight people. We selected eight bipolar pairs from early trials. We selected pairs for task state or recorded key identity. The same power-based key reader used each pair set. Later key Brier error was 0.2702 for state selection and 0.2687 for key selection. The mean paired change was -0.0015. Its 95% whole-person bootstrap interval was -0.0364 to +0.0276. Task-state balanced accuracy was 71.5%. Key balanced accuracy was 54.5% with key selection. These are offline results from later trials in the same people. Response alignment uses a future recorded event. Cue and motor effects cannot be separated. The package contains code, source records, full candidate features, selected raw waveforms, results, and figures.

stereo-EEG · brain-computer interface · recorded key decoding · contact selection · Brier error · offline evaluation

Admitted 1 citing publication

References

5
  1. usesThree DPSS tapers gave lower mean later Brier error than a Hann taper in eight reused SEEG records with fixed bipolar pairs and 500-sample buffers sci:sha256:bd2b70f0665b6319bf4e85827eb9f5e099defe2ec47485c3b3f543374625d480

    We used its retained trial definitions, pinned EDF ranges, calibration headers, source parser, and fitting utilities. Its archived waveforms checked exact raw extraction. We fitted new pair scores and key readers.

  2. usesConfidence from other people lowered probability error after condition changes in eight response-aligned SEEG key readers with 32 training trials sci:sha256:e10a8d80cc92d1ec0768628f960adb32ab5e8b01880eea11acd10a7af9445e01

    Its small key-reader confidence study supplied context for uncertainty and baseline checks. We did not use its feature or model files.

  3. usesSEEG power before a response gives 57.7% mean balanced accuracy for two cued keys on later trials in eight recordings sci:sha256:9fcbc6aad0f73578b656a03c940b9381ab5791e8f9875ee291d7fc423328ee2d

    Its earlier recorded-key test supplied the related-work context. We tested a new matched comparison of state and key pair selection. We did not use its features or models.

  4. usesdoi:10.18112/openneuro.ds004473.v1.0.2

    The analysis used the OpenNeuro ds004473 version 1.0.2 dataset.

  5. doi:10.1088/1741-2552%2Facae0a

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