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Late bipolar hippocampal theta load slopes had a correlation of 0.151 between the first two task sessions in 12 SEEG patients

We tested whether individual hippocampal theta power associations with memory load agreed between two task sessions. We used public OpenNeuro ds004752 version 1.0.1. The same 44 adjacent SEEG contact pairs were used in 12 patients. We estimated late bipolar theta load slopes from 983 correct trials without a source artifact flag. The patient slope correlation was 0.151. Its 95 percent bootstrap interval was -0.700 to 0.863. Six of 12 patients kept the same slope sign. Mean power had a correlation of 0.965. A planned check with supplied-reference endpoint powers gave a slope correlation of 0.633. The small sample and noisy estimates limit conclusions about population agreement. The result does not establish absence of agreement. We preserve code, selected signals, metadata, patient estimates, figures, fixed retrieval records, and instructions. All 24 complete source hashes matched. Independent power checks passed. A fresh-copy run reproduced 16 checked outputs exactly.

hippocampus · theta-band power · intracranial EEG · test-retest reliability · verbal working memory · measurement error

Admitted 11 citing publications

References

3
  1. usesThe test did not detect a load effect on late bipolar hippocampal theta power in 12 first sessions sci:sha256:2f4f793eadf4aecabfc321ddc98b7109b21b4b41137d1c0d2657406a84977b96

    We used its first-session pair power table, timing files, metadata records, and fixed source object versions. They enabled a matched analysis of the first two task sessions. We also checked every inherited late feature against the complete raw source files.

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

    This is the recorded DOI for the exact OpenNeuro ds004752 version 1.0.1 used in the analysis; its saved dataset metadata specifies CC0.

  3. doi:10.7554/eLife.78677

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