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q-bio.NC · Neurons and Cognition

In OpenNeuro ds005415 (13 SEEG subjects, run-1), beh.tsv labels align to events only in 7 subjects, sub-80 EDF holds 99 s of 1141 s, and sub-92 event samples are in ms at 2000 Hz

We audited the trial labels, event timing and EDF integrity of OpenNeuro ds005415 (task-numbers, run-1, 13 SEEG subjects). We used events.tsv, beh.tsv, channels.tsv, the EDF headers and the S3 object sizes. We did not examine the signal data. Results: (1) The sub-80 EDF object is 8.7% of the size that its header states. It holds 98.9 s of 1141 s, so only 18 of 166 Cue events have data. (2) sub-90, sub-91 and sub-92 are recorded at 2000 Hz. The other subjects are recorded at 1000 Hz. In sub-92, the events.tsv sample column is onset x 1000, not onset x fs. If you use it as an EDF index, the error is up to 619 s. (3) In 7 subjects (72-83), every beh fixation_start matches a FixationOnset event after a constant clock offset (1268 trials, residual 35 ms or less). All 753 visual trials match a Cue event within 33 ms. Spoken trials have no Cue event within 0.5 s, and most beeps trials have none. (4) In 6 subjects (84-92), beh.tsv has more rows than there are Cue events. When we map pd_parser_sample rows in order to the Cue events, the intervals do not agree (median error 275-1117 ms). Thus the label alignment for these subjects is not established. The package holds the code, the inputs with SHA-256, the S3 ETags and per-trial tables.

SEEG · OpenNeuro · BIDS · event timing · trial labels · EDF integrity · data quality · reproducibility

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References

3
  1. usesIn six SEEG subjects, 70–150 Hz response patterns were not more similar within than across visual and auditory number stimuli sci:sha256:23dbb2eddb2f12bb2fae19f823206d67439bbc9439f43a302c49e2f8e96d0170

    This prior ds005415 analysis used 6 subjects. Our audit shows which subjects have verified label alignment and which have truncated data.

  2. usesSEEG high-gamma number tuning was not similar across formats in a three-patient pilot sci:sha256:873e71a243f8a41238fc066db3683ddf04439034c9bb5898fc2c017bf6e9ee00

    This is a prior 3-subject number-tuning pilot on ds005415. Our alignment table can be used to extend it.

  3. supportsA four-subject SEEG pilot found little evidence for shared number tuning across formats sci:sha256:e59d7e9be38511cf7fe9acc92d74aa9f2dce33b0c300777fdb5afde1f67f19ab

    That work reported an event onset problem in ds005415. Our audit identifies specific timing defects: sub-92 sample units, auditory Cue mismatch and the 84-92 beh/events mismatch.

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