Information contained in sensory nerve recordings made with intrafascicular electrodes
Abstract
Multiunit recordings were made in anesthetized cats with chronically implanted intrafascicular electrodes over a period of six months. Neural signals recorded with these electrodes consisted of activity in sensory fibers innervating a variety of cutaneous mechanoreceptors. Mechanical stimuli were used to selectively activate individual nerve fibers, and the receptive field and receptor type were identified for each unit. Over a period of six months, there was a net shift in the recorded population, but the electrodes continued to provide a representative sample of the activity in the fascicle as a whole. The total number of units from which activity could be recorded remained roughly constant with time, and individual units persisted in the recordings for up to six months. These results indicate that intrafascicular electrodes could be used to sample information carried by individual somatosensory fibers on a long term basis.
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The first Pt-Ir LIFEs were stiff, causing relative motion within the fascicle, gradual drift of the recorded nerve fiber population, and reduction in signal quality.
“The first Pt-Ir LIFEs were quite stiff, which resulted in a relative motion of the electrode within the fascicle. This in turn resulted in a gradual drift of the recorded nerve fiber population and a reduction in signal quality (Goodall et al., 1991).”
From Update on Peripheral Nerve Electrodes for Closed-Loop Neuroprosthetics (2018) · cites this paper as Goodall et al., 1991
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References 9 · Cited by 63
- Authors
- Goodall, E. V., Lefurge, T. M., & Horch, K. W.
- Affiliations
- University of Utah (US)
- Venue
- IEEE Transactions on Biomedical Engineering
- Published
- 1991
- Volume
- 38
- Issue
- 9
- Pages
- 846-850
- ISSN
- 0018-9294 (ISSN-L)
- OpenAlex
- W2141190300
- Cited by
- 63
- References
- 9
- Citations by year
- 2025: 2 · 2020: 1 · 2019: 2 · 2018: 3 · 2017: 1 · 2015: 2 · 2013: 3 · 2012: 4
- FWCI
- 0.90
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- IEEE Transactions on Biomedical Engineering (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neural Engineering
- Life Sciences › Neuroscience › Cognitive Neuroscience › Tactile and Sensory Interactions
- Physical Sciences › Engineering › Biomedical Engineering › Muscle activation and electromyography studies
- Keywords
- intrafascicular electrodes, multi-unit recording, sensory nerve fibers, cutaneous mechanoreceptors, receptive fields, long-term neural recording, chronic implantation
- MeSH terms
- Animals, Cats, Electric Stimulation, Electrodes, Implanted, Peripheral Nerves, Radial Nerve, Sensory Receptor Cells
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Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
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