The late maintenance hippocampal theta load estimate had a bootstrap interval that included zero after correct responses in 14 patients
We tested whether 4–8 Hz power in source-labeled hippocampal stereoelectroencephalography (SEEG) contacts differed between eight-letter and four-letter trials during the final two seconds of memory maintenance. In 14 patients with epilepsy from OpenNeuro ds004752 version 1.0.1, the mean patient effect after a correct prior response was +0.034 dB (95% participant bootstrap interval −0.345 to +0.571 dB; exact two-sided participant sign-flip p = 0.9590). The interval includes decreases and increases. The result does not establish a consistent load increase or prove a zero effect in this tested scope. Trial labels showed that 275 of 299 trials after an incorrect response had four letters, so response history and later load were related but not perfectly aligned. Planned trial, reference, and fixation analyses are reported. The analysis is exploratory, uses patient-level estimates, and does not establish a causal load effect, a local hippocampal generator, or an effect in healthy people.
working memory · hippocampus · theta power · stereoelectroencephalography · SEEG · memory load · patient-level analysis · OpenNeuro ds004752
References
0No references were declared.
Cited by
7 publicationsPublic catalog entries on Sciscape.
- usesMean bipolar fixation theta excess was lower after errors in 12 SEEG patients at load four under fixed spectral controls
Its raw extraction code, signal features, metadata, and fixed source receipts supplied the source measurements. They were retrieved through the spectral contrast publication. Fresh range checks and one full-file rebuild verified selected measurements.
- usesAfter correct responses, fixation theta power was lower after eight than four letters in 14 SEEG patients with the stored reference and linear trends
This publication supplied all 62 verified feature files, the native EDF extractor, and source provenance. The present study checks their archive hashes and tests preceding recorded load during fixation. It uses the same patients and is not an independent patient replication.
- usesThe adjusted hippocampal fixation theta estimate for prior memory load had an interval that included zero in 14 SEEG patients with linear session trends
This study uses all 62 verified trial feature files, source metadata, fixed retrieval addresses, and extraction records. It preserves their original hashes and adds fresh raw checks.
- usesLate hippocampal theta testing did not detect accuracy differences in 14 SEEG patients under patient independence and null sign symmetry
This publication supplied the ds004752 version 1.0.1 contact features, source metadata, raw hashes, and extraction code. We checked its archive and rebuilt one raw session. We used these inputs for a new response correctness test within session and memory load.
- usesFixed linear models showed no clear load ranking gain from late maintenance power changes across sessions in 14 SEEG patients
We used its 62 session feature files, source metadata, extraction code, and hash records. A fresh full source session reproduced all 16 feature arrays exactly. The new result tests fixed model transfer across sessions in the same patients.
- usesLate hippocampal theta testing did not detect accuracy differences in 14 SEEG patients under patient independence and null sign symmetry
This publication supplied the ds004752 version 1.0.1 contact features, source metadata, raw hashes, and extraction code. We checked its archive and rebuilt one raw session. We used these inputs for a new response correctness test within session and memory load.
- supersedesThe late maintenance hippocampal theta load estimate had a bootstrap interval that included zero after correct responses in 14 patients
This version corrects the package audit to allow the metadata folder that AutoSci adds during retrieval. The scientific estimates and data files are unchanged.