Adding adjacent bipolar signals changed offline 4–8 Hz phase targets in 4 s SEEG baselines from 21 patients with fixed contact signs
This study tested whether a longer contact pair preserves an offline theta phase target. It used 35 public SEEG recordings from 21 patients and 982 consecutive contact triples. Both adjacent signals used a fixed contact sign rule. Their sum gave the longer pair. A 4–8 Hz Fourier projection defined phase in four-second pre-stimulation epochs. Each patient had equal weight. The rate of shifts above 45 degrees was 36.2 percent. The descriptive 95 percent interval was 34.3 to 38.0 percent. The rate was 22.2 percent when both amplitudes exceeded their own median. A Butterworth check gave 35.7 percent. An exact amplitude-ratio rule limited the shift to 45 degrees. The rule covered 35.2 percent of scored times with equal patient weight. All 349,125 accepted points passed the bound. A repeat matched all 45 checked input and result files. The package contains code, compact signals, source metadata and hashes, tables, two figures, and reproduction instructions. The study measures agreement between signal targets. It does not establish true neural phase or real-time BCI performance.
stereoelectroencephalography · SEEG · bipolar signals · theta phase · signal processing · brain-computer interface
References
6- usesNative sample counts give excess correlation calls under an independent phase null in 2-second SEEG beta windows from 21 participants sci:sha256:57eed8340807f9a6c0ee0a20be060749718a0560d83b328d5e823b65095231f9
Reused its byte-verified ds006519 retrieval recipe, fixed Git tree, annex links, source metadata, and two reader files. New four-second theta data were independently extracted from the raw source. Its beta inputs and results were not used.
- usesSummed bipolar pairs had no clear excess beta power change disagreement over baseline in 1.5 s SEEG windows after stimulation in 21 patients sci:sha256:5e9934f0e9a4f1d272fa3501c3c97a4d9fecece5e34ec9315915c0afb4f25c53
Its consecutive-contact triple design and summed bipolar identity informed this contact-span audit. This study tests offline theta phase instead of beta power change. The cohort is shared and is not an independent confirmation sample.
- usesBroad and early-peak theta references differed by more than 90 degrees at 14.1 percent of later times in seven SEEG rest records sci:sha256:6a2ec386628e56b4af60cbe7e07b90175f3f240c38ce759582e3bdc985b29af2
Its test of phase-target agreement under filter-band changes informed the question. This study changes contact span in a different dataset. None of its signals or result values enter the analysis.
- usesA paired test did not detect increased high-gamma drift in annotated post-stimulation windows from 21 SEEG participants sci:sha256:0eb1cda13cce113a7a1fe70466917eeb0278c662b2155ce27ee9d36ce7636489
The reused BrainVision header reader names this earlier source reader. The attribution is retained. It enabled correct reading of the multiplexed Float32 signals, source units, gain, and sample rate.
- usesdoi:10.18112/openneuro.ds006519.v1.0.0
Source dataset, OpenNeuro ds006519 version 1.0.0; the analyzed recording files were verified against recorded byte counts and SHA-256 hashes.
- doi:10.1016/j.neuroimage.2020.117314
Cited by
4 publicationsPublic catalog entries on Sciscape.
- usesA Fourier rule certified 65.5% of offline SEEG theta targets within 45 degrees for timing error up to 10 ms in 21 patients
Reuses all compact theta inputs, source metadata, retrieval manifest, and extraction code. A fresh public raw rebuild matched these inputs. The earlier contact-combination phase scores are not used. The cohort is shared.
- usesChanges in 4–40 and 70–150 Hz slopes had 52 percent median sign disagreement in marked post-stimulation SEEG windows of two seconds from 21 patients
The native header reader came from this work through the spectrum archive. Its code allows voltage gain and channel-order checks.
- usesAn exact rule raised causal 6 Hz SEEG forecast acceptance by 2.23 percentage points in 21 patients under the stated 20 ms RMS error model
Its common four-second prestimulation design and source cohort informed the current extraction. Its metadata and retrieval records reached us through the cited timing study. We did not reuse its contact-triple phase results. The cohort is shared.
- usesOffline 4–8 Hz Fourier phase moved backward in SEEG baselines from all 21 tested patients
This publication first supplied the four-second compact inputs and extraction definitions inherited through the direct input publication. The cohort is shared. Its contact-triple phase scores do not enter this study.