Replacing pulse samples changed zero-phase 70–110 Hz SEEG voltage above baseline RMS at 20–50 ms in 27/400 pulses (five patients).
We tested how a short input replacement changes later filtered SEEG voltage. We used OpenNeuro ds004457, version 1.0.2. Five patients supplied 400 pulses at 50 stimulation sites. We used one fixed bipolar readout per patient. We replaced input samples from −2 to 10 ms with a straight line. We then applied a zero-phase 70–110 Hz Butterworth filter. At 20–50 ms, the filtered change exceeded baseline RMS in 27 pulses, or 6.75 percent. The control replacement between pulses gave one exceedance, or 0.25 percent. Its baseline window differed from the main test. The main descriptive 95 percent patient bootstrap interval was 2.00–11.50 percent. The effect depended on filter settings and the output window. A second raw extraction and a separate calculation reproduced the main result. The package preserves raw digital epochs, code, source hashes, selection records, all pulse results, and three figures. This is a processing sensitivity audit. The neural signal inside the replaced interval remains unknown. The study does not establish an artifact-free signal or a clinical exclusion time.
SEEG · signal processing · electrical stimulation · filtering · artifact sensitivity · neural interfaces
References
3- usesBipolar subtraction changed site accuracy in both directions at 30–100 ms in five SEEG sessions sci:sha256:531e50239e932801e1c0cfd358414615addc29385833c8f1831bb538445b2800
We used its fixed contact choices, source manifest, BIDS metadata, and MIT raw retrieval code. These files enabled a new raw download and a new filter sensitivity analysis.
- usesdoi:10.18112/openneuro.ds004457.v1.0.2
Source data analyzed in this audit; the exact dataset release is recorded as OpenNeuro ds004457 version 1.0.2.
- supportsdoi:10.1523/JNEUROSCI.1325-22.2023
Source study for the recorded ventral temporal contact choices and the reported stimulation-artifact endpoint.
Cited by
6 publicationsPublic catalog entries on Sciscape.
- usesA 1 mV RMS error model gave 128–178 ms guards for a causal 70–110 Hz filter in five SEEG recordings
We reused its fixed 400 pulse epochs, contact scales, source metadata, event selection, and raw extractor. Fresh source extraction matched all arrays. The new work adds an arbitrary input error bound and an all-later-window guard. It does not add independent patients.
- usesPolynomial constraints reduced baseline error against a causal 70 to 110 Hz reference in 400 SEEG epochs from five patients
The parent preserved this work's original contact choices, epoch selection, and extract_epochs.py. We reused all 400 epochs and repeated extraction from the pinned public raw files without a new sample selection.
- usesA causal filter with 186 coefficients ended 10 ms gap error effects at 100.6 ms at 2048 Hz when inputs were equal outside the gap
This work used the digital SEEG subset, fixed selection rule, and raw extraction code inherited through the causal bound package. Fresh extraction reproduced the complete subset.
- usesRepair norm budgets gave a median 21.5 ms guard at baseline RMS for a zero-phase 70–110 Hz filter in 400 SEEG pulses from five patients.
We reused 400 digital epochs, event selections, source hashes, and MEF extraction code. Fresh extraction matched all preserved arrays.
- usesCausal filtering gave more output changes above baseline RMS at 50–80 ms with matched 70–110 Hz gain (five SEEG patients)
We used its exact 400 digital SEEG epochs, fixed sample rules, source metadata, raw manifest, retrieval code, and extraction code. We reproduced its zero-phase counts in the same sample. We added an equal-magnitude causal comparison, beta results, and early-to-later guard tests.
- usesA 50 ms reference change reduced median 70–110 Hz filter order error after simulated shaft removal in four SEEG patients
This work supplied MEF retrieval and extraction patterns and a causal filter audit approach. The new test changes reference weights in a separate four-patient dataset. No prior numerical result or raw epoch was reused.