The SEEG file in ds003029 version 1.0.7 has no complete samples at its marked seizure start and end under its BrainVision header

We checked whether marked seizures have stored data in OpenNeuro ds003029 version 1.0.7. The fixed version has 106 BrainVision records from 35 participants. One record has SEEG channels. Its full binary file has 355,472 bytes and matches the source MD5 checksum. Under its header, each time point needs 516 bytes. The file has 688 complete time points and 464 extra bytes. Complete data cover 0.688 seconds at the header rate. Seizure start and end are marked at 135.000365 and 186.000348 seconds. Neither time has stored data under the header or JSON clock. Three ECoG records have the same type of structural failure. The other 102 records passed size and event position checks. Their binary contents were not inspected. The package contains a Python checker, all source metadata, four complete binary files, fixed URLs, hashes, and all results. A separate frame count agreed. A second offline analysis gave identical result files. This result concerns this public version under its declared file format. It does not identify the cause or test a neural or clinical effect.

intracranial EEG · SEEG · epilepsy · data integrity · BrainVision · OpenNeuro · event markers · BIDS