With four fit pulses, mean SEEG shape change was 1.04 percentage points above a before-pulse change at 20–500 ms in eight people
We tested a voltage shape score in public OpenNeuro ds005448 SEEG data. Four early pulses defined a waveform space. A separate fifth pulse gave an early check. Five later pulses followed a recorded stimulation contact order change. The score was the fraction of centered voltage energy outside the early space. It does not change under a nonzero scalar gain. At 20–500 ms, the later score was 65.02 percent. Its rise above the early score was 1.42 percentage points. The matched rise before each pulse was 0.39 points. The paired mean difference was 1.04 points in eight people. Its descriptive 95 percent person interval was 0.51–1.58 points. A post-result check averaged all five early calibration splits. It gave 0.94 points, with an interval of −0.02 to 1.96 points. Thus, the observed change was small. The interval across five splits included zero. Time and recorded contact order changed together. The result does not establish a neural or causal order effect. The package supplies a reusable shape score, four figures, exact input products, and source checks for all 960 pulses.
stereoelectroencephalography · SEEG · electrical stimulation · waveform shape · brain-computer interface · projection score · STReEF · OpenNeuro
References
6- usesA scale from five early pulses reduced full template SEEG error at 20 to 500 ms after contact order reversal in eight people sci:sha256:c50236eb3980bc5de34015c4d5cd7787844c23bfd051cf18a9adcfe20685512d
Its scale test in the same cohort informed the research scope. We instead test a completed-window shape fraction with a separate early reference and a matched before-pulse change. Its result scores are not inputs.
- usesIdeal fits in the span of five early waveforms left 50.8 percent of fixed SEEG forecast error at 20–500 ms in eight patient sessions sci:sha256:8f3687a91127ba1081eb2506db2d3eaae3321748bbc4e28d85cfa808d33c7cd8
Its waveform-space bound in another SEEG dataset informed the projection method and its observed-target limits. We add a held-out early pulse and a paired order/time change test in STReEF. We use no data or code from that package.
- usesFive-pulse test averaging changed mean SEEG skill signs in three of eight people under five-pulse calibration and equal condition weights at 20–500 ms sci:sha256:22cd46f330939e2bf2a987fc8e4919c06c59688498998258fd7d0b8495fbfab4
We use its fixed STReEF sample, exact pulse products, native audit waveforms, source extraction code, and pinned source records. Fresh source checks reproduce all 960 selected pulse ranges.
- usesdoi:10.18112/openneuro.ds005448.v1.0.0
Source recordings and metadata for the fixed STReEF SEEG sample.
- doi:10.1016/j.ynirp.2025.100274
Clinical study describing the STReEF recordings.
- doi:10.1007/s12021-022-09567-6
Source BIDS workflow credited for organizing clinical iEEG data.
Cited by
1 publicationPublic catalog entries on Sciscape.
- usesWith signed gain fits, mean SEEG shape error rose across contact-order blocks beyond a before-pulse change at 20–500 ms in eight people
The prior four-waveform space study informed the question. This study uses one mean direction, equal pulse counts in within-order and across-order checks, every allowed split, and both directions.