A 7 Hz causal filter reader reduced unseen input squared error by a mean 50.4 percent at 50 ms in nine SEEG rest records
We tested forecasts of a specified causal filter in nine public SEEG rest records. The filter center was 7 Hz. Its decay time was 100 ms. We moved the known filter state forward by 50 ms. We then trained a linear reader to predict the added sum from unseen voltage. The mean squared-error reduction was 50.41 percent beyond known state. The descriptive 95 percent record bootstrap interval was 39.41 to 60.85 percent. All nine record means were positive. Independent noise gave minus 0.24 percent added skill, although known state explained 36.66 percent of future state energy. A secondary held-voltage forecast gave 35.19 percent skill. The reader had 1.37 degrees less mean phase error than this simple forecast. This is an exploratory test on reused clinical records and selected contact pairs. The target is a numerical filter state. Biological phase and stimulation effects remain untested. The package includes voltage, source versions and hashes, code, fitted readers, scores, three figures, proof, and reproduction commands. This version corrects the file check for added local files.
causal filtering · SEEG · forecasting · signal processing · filter state · phase estimation
References
9- usesRefitted spectrum controls gave 20.82 percent forecast skill at 50 ms for a future theta filter term in seven SEEG rest records sci:sha256:5331dccbbbce102efe12f29407e02b3847aa59bd5e06300de1073bc5d50f7e3b
Its spectrum controls guided interpretation of positive linear prediction skill. We make no claim that the new causal-state result exceeds what recorded temporal covariance can explain.
- supersedesA 7 Hz causal filter reader reduced unseen input squared error by a mean 50.4 percent at 50 ms in nine SEEG rest records sci:sha256:f76cad0a7ae5575cfcd32eadf27faa03d143ef1e88700f868678698095734658
This package corrects the archive file check. The check now verifies recorded files and permits added local environment files and sci retrieval metadata. All data, reader code, scores, and figures have the same hashes as the first archive.
- usesA 500 ms past voltage sum gave a 63.26 degree error for centered theta phase 50 ms ahead in seven SEEG rest records sci:sha256:678ac0e1b4e8d00b5e72eb22a8e9bbbfc9c4bd67c224a77925cb4cba677fc26f
This work supplied the known-versus-unseen filter contribution score concept. We applied the split to a causal state target that stops at the forecast time and used an exact state propagation comparator.
- usesA shared reader had 58.38 degrees of mean absolute phase error in two new SEEG rest records at 50 ms with a centered theta reference sci:sha256:6bd2f301da5cc69ca85251358ec5d79565bf3c48c78038666bfdd36352965b56
This archive supplied the nine native-rate voltage extracts, their hashes, and source timing and contact checks. We used all nine extracts without new pair selection.
- usesEarly frequency selection reduced mean 50 ms offline theta phase error by 3.55 degrees in seven SEEG rest recordings sci:sha256:5c3ae075960de0774e0fcc176ee07a5e3c9a353d86238f1e49023a23aa4d2bfa
This work supplied the original seven-record selection and source extraction evidence. We retained its selected pairs and pinned source metadata.
- usesdoi:10.18112/openneuro.ds006065.v1.0.0
Source for seven selected records; version 1.0.0 and CC0 license are recorded.
- usesdoi:10.18112/openneuro.ds005670.v1.0.0
Source for two selected records; version 1.0.0 and CC0 license are recorded.
- doi:10.1038/s41467-025-59417-7
Background source study for ds006065 and motivation for evaluating phase-timed feedback; this work uses only resting recordings and does not repeat the stimulation analysis.
- doi:10.7554/eLife.68803
Related prior work on real-time state-space phase estimation.
Cited by
11 publicationsPublic catalog entries on Sciscape.
- usesA learned state reduced mean 7 Hz filter phase error after 100 ms simulated gaps in nine SEEG rest records with known initial states
This publication supplied the causal 7 Hz filter design, known versus missing input split, 27 past input features, and chronological ridge fitting design. The new study tested recovery after input returned and preserved an added last sample test.
- usesTwo exact bounds certified a 7 Hz SEEG filter phase after simulated gaps in nine rest records under voltage caps
This archive supplied the nine fixed voltage extracts, source metadata, and 7 Hz causal filter definition. The new study tests missing input rather than forecasts and uses no prior forecast scores.
- usesA 0.95 gap map bound limited state sensitivity but increased phase error under dense irregular loss in nine SEEG rest records
Supplied the causal complex filter and past-only 27-feature model definition through the parent package.
- usesSpectrum controls gave 50.75 percent mean skill and a causal 7 Hz reader gave 50.41 percent at 50 ms in nine SEEG rest records
We use its nine selected SEEG inputs, exact causal filter target, 27-feature ridge reader, fitting periods, and score. We reproduce its main recorded scores and add refitted spectrum controls for the exact 50 ms unseen-input target.
- usesAn early linear reader reduced unseen input squared error by a mean 0.89% for a centered 7 Hz, 1 s target with a 50 ms center horizon in 250 hippocampal SEEG records
This work supplied the known and unseen filter input comparison. We applied that comparison to a centered finite filter and tested an early linear reader in the larger inherited cohort. Its causal recursive filter and nine-record sample differ from our test.
- usesEarly error disks covered 88.8 percent of later 7 Hz causal SEEG states at a 50 ms forecast delay in seven rest records
We used its seven ds006065 voltage extracts, fixed causal reader, and parent forecasts. We computed new disk coverage and gate yield scores.
- usesA fixed 50 ms phase forecast had 73.87 degrees more error with a centered target in 250 SEEG records at 7 Hz with a 1 s Hann filter
This publication supplied the comparison concept that separates an exact known causal filter contribution from unseen future voltage. We used that concept for two target time supports and independent noise.
- usesIn nine SEEG rest records, a 0.95 gap-map bound limited state growth but raised phase error under dense irregular loss
Supplied the causal complex filter and past-only 27-feature model definition through the parent package.
- usesA new fit of voltage history weights reduced state error after map clipping in nine SEEG rest records with sparse simulated loss
We used its causal 7 Hz complex filter and past 27-feature gap reader definition through the parent. The new state constraint applies to that affine reader.
- usesTraining on six other people reduced unseen contribution error by 4.94% in 250 SEEG records. The centered target used a 7 Hz, 1 s filter at a 50 ms delay.
This work supplied the benchmark concept of comparing a predicted unseen contribution with the exact known filter contribution. We use this score concept for a centered finite filter and exclude each test person from its donor fit.
- usesA square check bounded restart phase error in a 7 Hz causal filter on seven SEEG rest records with unchanged input
We used its 7 Hz complex causal filter with a 100 ms decay time and early voltage normalization. The new test changes the saved state precision and keeps all subsequent input unchanged.