Mean corrected SEEG change score was greater at 20 to 100 ms than at 100 to 500 ms after contact order reversal in eight people
In eight public SEEG recordings, the corrected waveform-change score was greater at 20–100 ms than at 100–500 ms. The comparison used reversed recorded stimulation contact orders and matched before-pulse windows. We subtracted the estimated contribution from variation between individual pulses. The mean early-minus-late contrast was 0.02294 on the single-pulse energy scale. The descriptive 95 percent interval was 0.00681 to 0.04002. Seven of eight person contrasts were positive. The exact two-sided test of person sign changes gave p = 0.03906. The test used 96 conditions, 960 pulses, and 6,803 readout-condition rows from OpenNeuro ds005448 version 1.0.0. All raw range hashes passed. Rebuilt early and late products matched the parent arrays exactly. Twelve numerical files matched on replay. The package preserves compact products, source receipts, code, and three figures. This is an exploratory reanalysis of a reused clinical sample. Contact order and time changed together. The result supports separate transfer checks for early stimulation readback. It does not isolate neural change or show live interface benefit.
stimulation-evoked potentials · stereo-EEG · waveform change · pulse variation · brain-computer interfaces · response transfer
References
7- usesSigned SEEG alignment at 20 to 500 ms exceeded a before-pulse control in eight people after contact order reversal sci:sha256:566477652590c53f83112c199b70fdca7b0e1f47861e04e334107dda534bae03
Reuses the fixed 96-condition sample, source pins, range transport code, metadata, and edge tables. New raw retrieval matches all 960 range hashes and the early and late product arrays exactly. Adds matched before windows and a new corrected early-minus-late change contrast.
- usesDisjoint pulse products gave greater 20 to 100 ms SEEG energy estimates for common components than for components that change sign in eight sessions sci:sha256:3da7cd28bcc794882a9bb95c4148d0e2fc31e52bc0b8c0fb5d60085f1a5c893d
Uses the prior pulse-product interpretation of common and sign-changing response components. The corrected change score is twice the all-pair odd-component estimate. This study tests a new matched early-minus-late contrast rather than claiming a new basic estimator.
- usesMean signed shared power fraction increased 17.63 percentage points more at 20–100 than at 100–500 ms after matched baseline subtraction in eight epilepsy SEEG sessions sci:sha256:ea937a7772df7e9e7ba2b56087e0b2c7fe8a3f1d3005ffe0232dfc4a1d31cfa3
Uses the prior method of matching native before-pulse sample counts to early and late response windows. That work used a different dataset and same-order blocks. The present test uses ds005448 contact-order reversal and a waveform-change score.
- 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
Uses the original metadata-only sample selection and adjacent bipolar readout method, retained through the direct parent package. Keeps the original selection code and license.
- usesdoi:10.18112/openneuro.ds005448.v1.0.0
Source data and metadata for the analyzed STReEF sample; exact version 1.0.0 is identified in saved metadata.
- doi:10.1016/j.ynirp.2025.100274
- doi:10.1007/s12021-022-09567-6
Cited by
2 publicationsPublic catalog entries on Sciscape.
- usesAfter 20 ms blanking, future reflection changed symmetric 7 Hz phase more before pulses than controls in eight STReEF patients
Uses the eight-patient, 96-condition, 960-pulse sample and its pinned source range records through the direct parent. All range hashes matched.
- usesWith local time centering, equal windows raised mean early SEEG variance ratios from 0.46 to 1.01 in eight STReEF patients
Uses the fixed eight-patient, 96-condition, 960-pulse sample, metadata, edge order, source version pins, and range transport code. A fresh retrieval checked all 960 inherited range hashes. New variance products and baseline tiles were calculated from native raw data.