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q-bio.NC · Neurons and Cognition

Prior error associations with hippocampal theta residuals increased from fixation to late maintenance in 14 epilepsy patients at load four under a fixed spectral model

We used public OpenNeuro ds004752 version 1.0.1 SEEG to test whether the association between a prior response error and a hippocampal theta residual changes during the next trial with four letters. The residual removes level and linear tilt under a fixed spectral model. Equal one-second fixation and final maintenance windows gave a mean change of +1.274 dB across 14 epilepsy patients. The 95 percent patient bootstrap interval was [+0.752, +1.856] dB. All 14 patient estimates were positive. One exact two-sided patient sign-flip test gave p = 0.0001220703125 under independence and null symmetry. Seven fixed descriptive variants had positive means. Two quality exclusions added after the result also had positive means. The package preserves new features for 745 trials, source versions and hashes, retrieval code, patient fits, resampling values, figures, and checks. This is an exploratory study in a reused cohort. The test does not account for selection of the question after earlier results. Adaptive load, clinical sampling, and signal limits prevent causal or general population claims. The residual does not establish a distinct theta oscillation.

hippocampus · theta residual · response history · working memory · stereo-EEG · maintenance · epilepsy

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References

5
  1. usesTwo tests did not detect a change in hippocampal theta density or fixed spectral excess from fixation to late maintenance in 14 first SEEG sessions with source reference and equal 1-s windows sci:sha256:fb03800c914a722ffc7c3cdc7e38dda97bb86317d51d14f3407e1a477f6646e5

    We read this phase result after calculation of the planned estimates and use it to define the interpretation scope. It tests average phase change after correct prior responses in first sessions, with different trend bins. Our test compares phase changes between prior outcomes across selected load-four trials. No analysis rule changed after that reading.

  2. usesMean hippocampal fixation theta was lower after errors at load four in epilepsy patients with session and prior load controls sci:sha256:5b9da30eb0d45fcd589aa608a475184bff3cd92f8865a8786699d70f760b6100

    The known fixation response-history result supplied the follow-up question through the immediate parent. It is disclosed as known evidence. The new test compares the history association across task windows.

  3. usesMean hippocampal fixation theta power density decreased more than a fixed spectral trend after errors at load four in 14 epilepsy patients sci:sha256:e79f76d88dc1468b3801b5d292228dc657eb4ca1255530107b7bf8fe34f5c216

    This study uses the parent feature and metadata files, fixed source versions, extraction receipts, history rules, patient model, and spectral trend contrast. It newly retrieves equal one-second maintenance windows and tests their direct difference from fixation. This is the same cohort. Fixation values are numerically reproduced, but the new result is not an independent replication.

  4. usesdoi:10.18112/openneuro.ds004752.v1.0.1

    This is the exact OpenNeuro dataset version used for the analyzed recordings and inherited features; saved dataset metadata records the DOI and CC0 license.

  5. supportsdoi:10.7554/eLife.78677

    The task paper documents the verbal working-memory task and trial sequence used to interpret the source task events and timing.

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