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eess.SP · Signal Processing

Residual magnitude order reduced the mean 20 ms ordinal score of uncapped circular AR50 controls fitted to data from 36 SEEG patients

This study tested whether residual magnitude order changes a time-asymmetry reference score for public SEEG. It used 144 selected traces from 36 patients in OpenNeuro ds004100 version 1.1.3. Two control families used the same residual magnitudes and independent fair signs. One family kept magnitude order. The other family used random order. The same circular AR50 filter gave equal expected full-window Fourier power in both families. At 20 ms spacing, the ordered family had a lower mean ordinal score. The equal-patient difference was -2.73864e-05 nats. The conditional 95% patient bootstrap interval was [-5.36953e-05, -7.49609e-06] nats. The ordered score was lower in 25 of 36 patients. Orders 20 and 100 gave similar differences. Capping magnitudes at the 99th percentile reduced the difference. That interval included zero. A complete offline repeat gave identical numerical outputs. The result shows a control-model limit. It does not identify a neural cause or prove nonlinear neural dynamics.

ordinal patterns · time asymmetry · SEEG · autoregressive controls · Fourier power · residual magnitude order · Jensen-Shannon divergence

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References

6
  1. usesResidual draws raised ordinal time asymmetry over Gaussian noise in AR(50) controls for two SEEG contacts in 36 HUP patients sci:sha256:96e7c07661eaac9d0add3e3f38b51b1599a3a3ddb7def7bb6298a6bec5cc2e72

    This work supplied the 144 selected native SEEG traces, source records, and AR fit code. Its control result led to the fixed question about residual magnitude order.

  2. usesPaired 300-second SEEG files from 36 HUP patients shared no exact digital segment of at least one second on both selected contacts sci:sha256:692a0c5e11ca318443298a1f9d5379a96dd843d5d1c48afd38335ca90c8d9df5

    This work supplied the source retrieval code and source provenance through publication 1326a68f-99d6-4609-8802-11abf353c3db. These files support public source checks and complete retrieval.

  3. usesMean ordinal time asymmetry exceeded IAAFT controls in 60 s SEEG windows from two contacts per patient for 36 HUP patients under the supplied reference sci:sha256:c0aa869fe063157a8ea057e937a01f8a6313305df4e720fe4a6bcd0daec9b559

    This work supplied the ordinal pattern code through publication 1326a68f-99d6-4609-8802-11abf353c3db. The present study independently checked its counts and score formulas.

  4. usesdoi:10.18112/openneuro.ds004100.v1.1.3

    The study analyzed selected native SEEG traces from OpenNeuro ds004100 version 1.1.3.

  5. doi:10.1063/1.5055855
  6. doi:10.1016/S0167-2789(00)00043-9

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