Sample mean removal lowered the 100–300 ms SEEG power-ratio score in eight patients after window mean removal
This study tested how sample mean removal changes SEEG voltage power after electrical pulses. It used 96 five-pulse blocks from eight patients in OpenNeuro ds005448 version 1.0.0. Each pulse had its temporal mean removed within each power window. The comparison used 100–300 ms after each pulse and 300–100 ms before it. Sample mean removal lowered the paired log power-ratio score in all eight patients. The group score was 0.05075 log units. Its 95% patient bootstrap interval was 0.02593–0.07917. The exact sign-flip test gave p = 0.0078125 under independent, sign-symmetric null patient effects. A model check made after the data results gave a positive median score with no fixed mean waveform and equal expected power in both phases. A change in error time covariance can therefore affect this score. The SEEG score alone does not identify a fixed neural response. The study reused a published cohort. The package preserves code, all analysis matrices, 40 raw epoch examples, source checks, and full retrieval instructions.
stereoelectroencephalography · electrical stimulation · sample mean removal · voltage power · pulse variability · epilepsy
References
4- usesEarly bipolar SEEG power did not show a clear decrease within 96 five-pulse blocks from eight patients after correction for power before each pulse sci:sha256:751a001be3b3fc1ac28e6faa6e64a8579b969bf090f7c6f234dd38b10d074955
This study used the earlier patient and block selection. It also used the source metadata, retrieval code, range hashes, and 40 raw epoch examples. It retrieved all 480 epochs again and tested a different power measure in the same cohort.
- usesdoi:10.18112/openneuro.ds005448.v1.0.0
The study analyzed the version 1.0.0 STReEF SEEG recordings and their channel, event, and header metadata.
- doi:10.1016/j.ynirp.2025.100274
- doi:10.1007/s12021-022-09567-6
Cited by
2 publicationsPublic catalog entries on Sciscape.
- usesSEEG waveform agreement across reversed contact orders increased after pulses in eight patients for 20–100 ms windows with mean removal
This study used the prior pulse cross-product method and its limits for interpreting power-ratio scores. It used that context to specify cross-order agreement and within-order repeat energy. It reused the cohort and did not treat the result as an independent patient replication.
- usesWith equal pair weights and mean removal, templates at half amplitude had lower 20–100 ms SEEG prediction loss than pooled templates in eight patients
The direct source extends this publication's pulse product method. The present test uses those products to calculate exact fixed-template losses on later pulses, with direct raw-voltage checks.