Intracortical recording stability in human brain–computer interface users
Open accessAbstract
Objective . Intracortical brain–computer interfaces (BCIs) are being developed to assist people with motor disabilities in communicating and interacting with the world around them. This technology relies on recordings from the primary motor cortex, which may vary from day to day. Approach . Here we quantify, in two long-term BCI subjects, the length of time that action potentials from the same neuron, or group of neurons, can be recorded from the motor cortex. Main results . These action potentials are identified by their extracellular waveforms and may change within a single day, although some of these identified units can be identified consistently for weeks and even months. Features of the extracellular waveforms allowed us to predict whether a specific unit was more or less likely to remain stable over a prolonged period. Significance . A greater understanding of unit stability and instability can aid the development of motor BCIs, where the goal is to maintain a high level of performance despite changes in the recorded population. BCIs should be able to be operated without technician intervention for hours, and hopefully days, to provide the most benefit to the end-users of this technology.
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Earlier work has shown that neural recordings are stable over short periods.
“as might be expected from prior work showing short-term stability of neural recordings19–21.”
From High-performance brain-to-text communication via handwriting (2021) · cites this paper as [21]
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BackgroundPrecise control of neural activity using dynamically optimized electrical stimulation
Shah, N. P., Phillips, A., Madugula, S., Lotlikar, A., Gogliettino, A. R., Hays, M. R., Grosberg, L., Brown, J., Dusi, A., Tandon, P., et al. (2024) · eLife · doi:10.7554/elife.83424 · Cited by 15 · see citing works
- Authors
- Downey, J. E., Schwed, N., Chase, S. M., Schwartz, A. B., & Collinger, J. L.
- Affiliations
- University of Pittsburgh (US)
- Center for the Neural Basis of Cognition (US)
- Corresponding author
- Collinger, Jennifer L
- Venue
- Journal of Neural Engineering
- Publisher
- IOP Publishing
- Published
- 2018-05-15
- Volume
- 15
- Issue
- 4
- Pages
- 046016
- ISSN
- 1741-2552 (ISSN-L)
- 1741-2560
- OpenAlex
- W2790078435
- Cited by
- 149
- References
- 62
- Citations by year
- 2026: 16 · 2025: 22 · 2024: 20 · 2023: 20 · 2022: 13 · 2021: 20 · 2020: 20 · 2019: 12 · 2018: 6
- FWCI
- 6.60
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Licence
- Locations
- Journal of Neural Engineering (publishedVersion)
- PubMed (publishedVersion)
- Funders
- Defense Advanced Research Projects Agency (Contract N66001-10-C-4056)
- Topics
- Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neural Engineering
- Life Sciences › Neuroscience › Cognitive Neuroscience › EEG and Brain-Computer Interfaces
- Life Sciences › Neuroscience › Cognitive Neuroscience › Neural dynamics and brain function
- Keywords
- intracortical brain-computer interfaces, primary motor cortex, extracellular action potentials, long-term recording, motor impairment
- MeSH terms
- Action Potentials, Adult, Electrodes, Implanted, Electroencephalography, Female, Humans, Male, Microelectrodes, Middle Aged, Motor Cortex, Quadriplegia, Brain-Computer Interfaces
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Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
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