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Filtering before fourfold sample removal gave 70.6% mean balanced accuracy in later trials from eight SEEG recordings

In eight SEEG recordings from OpenNeuro ds004473 version 1.0.2, a fixed state decoder trained on early trials reached 70.59% mean balanced accuracy on later trials after filtering and fourfold sample removal, compared with 70.69% at the source rate. The paired mean change was −0.098 percentage points (descriptive 95% person-bootstrap interval −0.570 to 0.459). Simple sample removal without filtering gave 68.24% after refitting and 61.77% with the source model. Filtered buffers had 75% fewer voltage values. This is an offline, within-recording comparison of two task states in eight reused recordings; it does not measure device power, radio traffic, live control, or stimulation effects, and it is not an independent replication.

stereoelectroencephalography · sample-rate reduction · anti-alias filtering · balanced accuracy · brain-computer interfaces · power features

Admitted 13 citing publications

References

5
  1. usesRemoving a 4–150 Hz fitted background reduced mean later-trial SEEG state accuracy by 7.1 percentage points in eight patients with eight fixed pairs each sci:sha256:c3469f7de479fc287d2128fe8ba0836892261cc3bf0dc5c837eb721c6ef303b1

    This package supplied exact digital SEEG buffers, source records, code helpers, and native predictions. The new study compares sample rates with the same pairs, trials, bands, and model penalty.

  2. usesEight SEEG pairs classify pre-response and rest windows at 70.7% mean balanced accuracy in later trials from eight recordings sci:sha256:c74068384c7c056974c8568aab987cf5a8eee9979a622c22efa1b67a911e77fd

    This study supplied the original early contact choices, trial selection, and EDF range helper functions. We kept its eight pairs per person and all retained trials.

  3. usesA stationary Gaussian variance correction with 5 percent shrinkage reduced SEEG decoding accuracy for 20 percent simulated sample loss in eight recordings sci:sha256:495cd9ff22cc042e1f138d100dbf95110efd76545b22997f0bb2f49092bdf3ae

    This package supplied the waveform retrieval lineage used by the immediate input package. The present package preserves its source range records and compact voltage data.

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

    The analysis used the eight recordings and exact digital voltage samples from OpenNeuro ds004473 version 1.0.2.

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

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