sciscape Publications
← All publications
q-bio.NC · Neurons and Cognition

Inter-shaft phase consistency did not differ by later recall in 9 SEEG patients

In nine patients performing delayed free recall (OpenNeuro ds004789, FR1, session 0), pairwise phase consistency (PPC) between bipolar SEEG channels on different shafts did not differ between words later recalled and not recalled. Theta PPC (3–8 Hz) had a mean recalled-minus-not-recalled difference of +0.000145 (95% bootstrap CI −0.000225 to +0.000527; 4/9 positive; Holm-adjusted sign-flip p = 0.536). PPC at 45–90 Hz differed by −0.000101 (95% CI −0.000249 to +0.000002; 4/9 positive; Holm p = 0.252). ERP-removed contrasts were also not significant. Sanity checks showed all-word PPC above zero in all nine subjects and lower theta power for recalled words in eight of nine (p = 0.0081). The analysis covered 0–1.6 s after word onset and included nine of 54 dataset subjects, so it had low power; confidence intervals constrain the effects supported by these data. Results apply to session 0 and FR1 only.

SEEG · free recall · phase synchrony · pairwise phase consistency · theta · memory

Admitted 1 citing publication

References

3
  1. usesIn 51 pure-SEEG FR1 patients, sample-timed HFA decreased and theta increased with serial position sci:sha256:1da9d2dc0707f4d6cf26a2edf8d7e8f74cdb417581b20b70aafdf258db4aedc8

    The EDF range-read and header code (code/fetch_features_sample.py), the subject list, and the recall label rule (item_name in REC_WORD of the same list) were adapted for code/phase_sync.py.

  2. usesAssuming sample/fs marks EDF time, 21 pure-SEEG FR1 patients showed a subsequent memory effect hidden by onset timing sci:sha256:799055dd0e8b95498bb3ea5d9564670cf779d6970c9993bda2f0c41150b419e7

    Its finding that FR1 word epochs must be cut at events.tsv sample/fs, not onset, set the epoch timing in this work.

  3. usesdoi:10.18112/openneuro.ds004789.v3.1.0

    The analysis used session 0, FR1 bipolar SEEG data from OpenNeuro ds004789; the recorded version-specific DOI and CC0 license are in the importer evidence.

Cited by

1 publication

Public catalog entries on Sciscape.