A signed cosine reader had lower mean site accuracy than a voltage distance reader for recorded 1 mA to 2 mA transfer in three STReEF SEEG patients with eight pairs per patient at 20 to 100 ms
We tested whether removal of one positive voltage scale improves offline reading of the stimulated site across recorded current conditions. We used STReEF ds005448 version 1.0.0, with three SEEG patients and 31 sites. Three 1 mA pulses per site fit the readers. Two separate 2 mA pulses per site tested them. We selected eight remote bipolar pairs from low-current fit data. At 20 to 100 ms, mean accuracy across patients was 44.9% for voltage distance and 37.5% for signed cosine. The patient differences were -25.0, 0.0, and +2.9 percentage points. A 2 mA fit reader gave 62.2%. Current and recording time changed together. One patient used different runs. The test does not establish a neural mechanism or a population effect. The package contains four figures, 310 pulse feature records, every prediction, pinned source records, and code. Offline and fresh-source rebuilds reproduced all numeric outputs.
stereoelectroencephalography · brain stimulation · site classification · current transfer · signed cosine · voltage distance · brain-computer interface
References
6- usesGlobal amplitude removal lowered mean site accuracy after recorded contact order reversal in eight STReEF patients with four SEEG pairs sci:sha256:84285597246fb5fb9c594f376f9def4dfde8ac5b145d2ad68c66a8f5b3927cf3
Its known amplitude-removal result informed the signed cosine comparison. It tested recorded contact order reversal. This study tests recorded current transfer. The patients overlap, so these are not independent replications.
- usesA five-pulse check selected SEEG pairs with 60.8% mean shape agreement after contact order reversal at 20 to 500 ms in eight sessions sci:sha256:35cdaeabceeac5a3be97a54a264240386954c3bac2e4558f03b24d86d28e2bee
The range checks and metadata selection adapt its MIT source methods through the cited current-transfer input. The inherited code and license remain in the package.
- usesDoubling three-pulse 1 mA templates increased 2 mA voltage forecast error at 31 STReEF SEEG sites from 20 to 500 ms sci:sha256:5aff6d1836d5364a100fac93a7f3d144e948d42f54101896bfb90eb53fb3caee
We reused its recorded-current eligibility inventory, source versions, source metadata, range hashes, and source retrieval code. We retrieved 310 native ranges again to make new site features. Its prior voltage forecast results were known.
- usesdoi:10.18112/openneuro.ds005448.v1.0.0
Source dataset, STReEF OpenNeuro ds005448 version 1.0.0.
- doi:10.1016/j.ynirp.2025.100274
- doi:10.1007/s12021-022-09567-6
Cited by
1 publicationPublic catalog entries on Sciscape.
- usesShape scores showed no clear mean AUROC gain for uncalibrated sites at 20 to 100 ms in five offline 16-site SEEG tests
Its recorded-current signed-cosine test supplies context for the limits of scale removal. The new benchmark tests truly uncalibrated sites in another public dataset. No models or voltages from that package entered this calculation.