Eight 16-contact SEEG tests showed no clear key Brier decrease from one pair per shaft under known simulated shaft loss
We tested recorded key probabilities in eight public SEEG records. Each reader used eight bipolar pairs and 16 distinct contacts. The test used later trials and known simulated shaft loss. One pair per shaft gave mean maximum Brier error of 0.2498. Selection without a shaft limit gave 0.2528. The mean paired change was -0.0030. Its 95% person bootstrap interval was -0.0082 to +0.0014. The interval permits both benefit and harm. Most readers were close to a constant key probability. This reused clinical cohort does not establish live BCI performance. All 1,253,358 candidate power values matched fresh source ranges. The package preserves figures, code, features, source pins, model states, trial probabilities, and reproduction instructions.
stereo-EEG · brain-computer interfaces · bipolar contact selection · shaft loss · Brier error · recorded key decoding · logistic regression · fault tolerance
References
5- 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 trial screen and synchronized windows through the feature publication. These rules define the analyzed source rows.
- usesSelection for recorded keys did not show lower mean offline Brier error in eight cued SEEG records with eight pairs and C=0.1 sci:sha256:2047f79db4d9e9dd533e065eef4a8e302bcd32e1612ea74a42444e00258cbc4f
We used its complete candidate power arrays, trial rows, source pins, EDF reader, and logistic fitting code.
- usesOne pair per shaft showed no clear gain in lowest balanced accuracy after a known simulated shaft loss in eight later-trial SEEG tests at 16 contacts sci:sha256:5f8c5a234d2daf29596b053b0c7a1a1f7aac5fdbdaf43faeac64da4b037739ad
We used its exact contact-disjoint selector and proof. Its task-state shaft-loss test supplied prior context.
- usesdoi:10.18112/openneuro.ds004473.v1.0.2
The analyzed dataset is OpenNeuro ds004473 version 1.0.2; its saved metadata and source pins identify this exact version.
- doi:10.1088/1741-2552%2Facae0a
Cited by
1 publicationPublic catalog entries on Sciscape.
- usesSelection for the highest surviving score showed no clear Brier error decrease after known shaft loss in eight later-trial SEEG tests at 16 contacts
Use its probability-error question and Brier endpoint for known shaft loss at the same 16-contact budget. This investigation uses rest versus pre-response task state, a fixed reader setting, and a different selection objective. It does not reproduce the earlier recorded-key result.