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q-bio.NC · Neurons and Cognition

Distance from supplied coordinates showed no clear mean link to 25–95 ms voltage peak time after a five-pulse R ≥ 0.5 screen in 8 SEEG records

The test showed no clear mean link between distance and peak time. We used public STReEF SEEG data from 8 people with epilepsy. The source sample had 96 stimulation conditions and 6,803 readout-condition rows. A repeatability screen used five earlier pulses. It kept 1,289 rows. The distance and later peak score used 1,235 rows in 59 conditions. Five later pulses had the reverse recorded stimulation contact order. We used the largest absolute centered voltage peak at block centers from 25 to 95 ms. The mean within-condition Spearman correlation was 0.060. The patient bootstrap 95% interval was -0.038 to 0.145. The two-sided patient sign-flip p value was 0.304688. Each patient had equal weight. The before-pulse mean correlation was -0.034. This reused sample gives an offline measurement result. Supplied coordinates must be correct. Voltage peaks do not measure neural conduction delay. The later peak was at a search-window edge for 63.3% of weighted rows. The package has figures, code, native mean waveforms, all planned checks, and a raw retrieval recipe. All 960 source range hashes matched.

SEEG · stimulation · voltage peak · contact distance · repeatability · brain-computer interface

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References

7
  1. usesThe nearest half of SEEG pairs had a higher mean rate of repeatable waveforms across recorded contact order reversal in eight STReEF patients sci:sha256:399c1198c4184a27bd9be26923336885a19d4fdd7d9a5d49a4ca8f9cffac5cae

    Its metadata selector and checked HTTP range download code are retained through the direct input publication. We reproduced the chosen events and contact pairs from source metadata and kept its MIT notice.

  2. usesGreater distance was associated with a smaller early window advantage in repeatable SEEG voltage at 96 conditions in eight patients sci:sha256:8ce49df0e874a8fe67c61d4467b06d1a1564be89d2f8ec47da539373586edbd8

    We reused its fixed 96-condition STReEF selection, source metadata, source object and range pins, inherited audit waveforms, and range retrieval code. We retrieved every raw range again and checked the early and before-pulse Gram matrices. The new endpoint is distance and later 25–95 ms absolute voltage peak time after an earlier five-pulse R screen.

  3. usesEarly 25–95 ms peaks for each readout did not show clearly lower mean error than a shared peak in 8 SEEG records with early waveform r ≥ 0.8 after recorded contact order reversal sci:sha256:a68dc452d4f69d2a860b44216273f4fa629e677c5292305ec79503fcbf8f2bc3

    We used its related comparison of individual and shared peak-time predictions in this reused cohort to frame the new distance question and the limits on cohort independence. We do not use its peak arrays or prediction errors.

  4. usesdoi:10.18112/openneuro.ds005448.v1.0.0

    The analyzed sample is STReEF, OpenNeuro ds005448 version 1.0.0; the saved source metadata and release pins identify this dataset version.

  5. doi:10.1016/j.ynirp.2025.100274

    Background paper describing structural and effective brain connectivity in the STReEF clinical cohort.

  6. doi:10.1093/brain%2Fawab362

    Background CCEP modeling work cited for the distinction between axonal and synaptic delays; this study uses a different voltage peak endpoint and supplied straight-line contact distances.

  7. doi:10.1007/s12021-022-09567-6

    The saved dataset license and provenance records identify this work as the source BIDS workflow.

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