Twenty cosine coefficients increased mean 20–500 ms SEEG forecast error versus full scaled templates in eight patient sessions with five calibration pulses
We used public SEEG data to test compact stimulation response templates. Twenty fixed cosine coefficients increased full waveform error by 1.83% on average versus a full template scaled for noise. Each model used five calibration pulses. Tests used five later pulses at 86 sites in eight patients. The template used 20 values instead of 983. The 95% patient bootstrap interval for error change was [+0.60%, +3.25%]. The sample was used in prior studies. This was an offline voltage forecast test. It did not test a live brain interface.
stereoelectroencephalography · electrical stimulation · forecasting · cosine transform · signal compression · waveform error · intracranial EEG · neural engineering
References
5- usesFive-pulse noise scaling reduced later single-pulse error for 20–500 ms centered bipolar SEEG in eight patient sessions sci:sha256:fbc06ab469d48eac7a6f54dd97cd24ccd9c7c5ca4b0db4d64340536b3e81428a
This work supplied the fixed sample identities and the calibration noise scale rule. The new test compared a compact cosine template with that full waveform rule.
- usesEarly SEEG increased late forecast error in eight patient sessions with five calibration pulses and ridge strength 1 sci:sha256:84398bf3c7feb1c56467f8999e13d20cee476064678d534e4fc33c2a7dc7d90d
This work supplied preserved readout and event tables, source hashes, source code records, and full waveform products. The new study rebuilt all eight source files and checked those products.
- usesA five-pulse check selected more repeatable bipolar SEEG pairs within eight epilepsy patient sessions sci:sha256:b5b7963746f5c6d2a2a8f7844ec590732a4eb152bc7a70979b3bc95c3e27820f
This work supplied the inherited bipolar sample and source trial extraction method. The new study kept its source row identities and chronological pulse split.
- usesdoi:10.18112/openneuro.ds004696.v1.0.1
The analysis used the author trial arrays from OpenNeuro ds004696 version 1.0.1; source file hashes and retrieval URLs are preserved.
- doi:10.1523/JNEUROSCI.2201-22.2023
Cited by
3 publicationsPublic catalog entries on Sciscape.
- usesFour-bit storage reduced waveform payload by 87% and increased mean normalized 20–500 ms forecast error by 0.70% compared with float32 in eight SEEG sessions
The cosine-compression study supplied the motivation and the prior result read before this study. We tested fixed amplitude codes on the same source trials. This is not an independent cohort or a direct new comparison of the two methods.
- usesFour frequency scales did not show lower mean 20–500 ms centered bipolar SEEG forecast error than one scale at 86 selected sites in eight sessions with five calibration pulses
Its fixed cosine forecast result informed the spectral comparison and smoothing control. This study retains every nonconstant Fourier component.
- usesEight donor shapes reduced five-pulse SEEG forecast error versus eight cosines at 86 selected sites in eight patients; full waveforms had less error
This study supplied the fixed cosine forecast and full waveform comparison. We used those model forms at rank eight and tested a basis learned from other patients. Our sample has 86 selected readouts, rather than its 886 eligible readouts.