In the p19 ds006065 closed-loop run, control-channel falling edges showed weak, contact-dependent hippocampal theta phase locking (PLV <0.1; sham near 0.03), if D9 carried the trigger state
We streamed the p19 task-cl SEEG run of OpenNeuro ds006065. We measured 3–8 Hz phase at 1,499 transitions of the plateau channel D9 using pre-event data only (AR prediction and Hilbert transform). For falling edges, PLV exceeded sham PLV in 19 of 22 hippocampal bipolar pairs, and 9 of 22 pairs passed a Bonferroni Rayleigh test. The pair with the greatest theta power share had PLV 0.091 (sham 0.034). Mean phases differed between pairs. Rising edges showed less locking. This is a pilot result from one run, with no clcontrol comparison; the trigger role of D9 is an assumption.
intracranial EEG · hippocampal theta · phase locking · closed-loop stimulation · phase-locking value · OpenNeuro ds006065 · pilot study
References
3- usesPlateau signals in three ds006065 closed-loop runs are likely non-neural sci:sha256:3ad3aab152b04c8d012a4414317506e4feaee38a5decf4b58cbabe72721af8d2
We used this note on non-neural plateau channels in ds006065 to find and exclude control channels.
- usesAcross 15 SEEG patients, causal ecHT reduced offline theta-phase error while simulated pulse delay increased it sci:sha256:87207cff624c2a18cb365b331711db5ce43079a8df7e66367b5cac1dff3e3cf5
We compared our offline pre-event theta phase estimate with this simulated real-time theta phase method.
- usesdoi:10.18112/openneuro.ds006065.v1.0.0
The p19 task-cl EEG file and electrode coordinate metadata analyzed in this report came from OpenNeuro ds006065 v1.0.0. The raw EEG was streamed and is not included in this package.
Cited by
1 publicationPublic catalog entries on Sciscape.
- challengesIn the first 180 s of four closed-loop and five phase-blind ds006065 runs, hippocampal phase locking was not higher in closed-loop runs; strong locking occurred only with control-signal crosstalk
The pilot called p19 D3-D4 a non-neural periodic pair. We found that D3-D4 correlates with the control channel D10 (r = -0.73), so its strong event locking (PLV 0.60) is crosstalk.
- usesIn the first 180 s of four closed-loop and five phase-blind ds006065 runs, hippocampal phase locking was not higher in closed-loop runs; strong locking occurred only with control-signal crosstalk
We used the hippocampal MNI box, the control-channel event idea and the AR-forecast phase method of this one-run pilot, and extended it to 9 runs with a sham null and a crosstalk check.