Cited by 64Neuroscience and Neural EngineeringNeural dynamics and brain functionEEG and Brain-Computer Interfaces

Real-time estimation and biofeedback of single-neuron firing rates using local field potentials

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Hall, Thomas M., Nazarpour, Kianoush, Jackson, Andrew·2014·Nature Communications

Abstract

The long-term stability and low-frequency composition of local field potentials (LFPs) offer important advantages for robust and efficient neuroprostheses. However, cortical LFPs recorded by multi-electrode arrays are often assumed to contain only redundant information arising from the activity of large neuronal populations. Here we show that multichannel LFPs in monkey motor cortex each contain a slightly different mixture of distinctive slow potentials that accompany neuronal firing. As a result, the firing rates of individual neurons can be estimated with surprising accuracy. We implemented this method in a real-time biofeedback brain–machine interface, and found that monkeys could learn to modulate the activity of arbitrary neurons using feedback derived solely from LFPs. These findings provide a principled method for monitoring individual neurons without long-term recording of action potentials.

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  • The mismatch between tremor and voluntary motion amplitudes can push adaptation towards the dominant components of voluntary movement rather than tremor.

    “This mismatch can push the adaptation towards the dominant components of the voluntary movement rather than that of the tremor [19].”

    From A Quaternion Weighted Fourier Linear Combiner for Modeling Physiological Tremor (2016) · cites this paper as [19]

    The Results section on generalisation across BMI tasks discusses wrist movement and LFP-based firing-rate estimates, not tremor or adaptation driven by movement amplitude. Searches for ‘tremor’ and for voluntary-movement amplitude and adaptation found no passage addressing the claim. Page numbers were not provided in our copy. (LLM, conf=0.76)

    Experimental — accuracy not yet measured
  • The amplitude of typical physiological tremor is approximately 50 times smaller than that of voluntary motion.

    “The amplitude of typical physiological tremor is however approximately 50 times smaller than that of the voluntary motion.”

    From A Quaternion Weighted Fourier Linear Combiner for Modeling Physiological Tremor (2016) · cites this paper as [19]

    The Methods section describes a wrist torque-controlled task, and the Results discuss wrist movement and neural signals, but neither gives a physiological-tremor amplitude. Searches for “physiological tremor,” “tremor,” and the claimed 50-fold comparison found no passage in our copy that supports the comparison with voluntary motion. Page numbers were not available. (LLM, conf=0.76)

    Experimental — accuracy not yet measured

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Authors
Hall, T. M., Nazarpour, K., & Jackson, A.
Affiliations
Newcastle University (GB)
Venue
Nature Communications
Published
2014-11-14
Volume
5
Issue
1
Pages
5462-5462
ISSN
2041-1723 (ISSN-L)
OpenAlex
W1995707034
Cited by
61
References
55
Citations by year
2026: 1 · 2025: 5 · 2024: 4 · 2023: 3 · 2022: 5 · 2021: 5 · 2020: 5 · 2019: 9 · 2018: 5 · 2017: 4 · 2016: 11 · 2015: 3
FWCI
2.74
Type
journal article
Language
en
Open access
Locations
  • Nature Communications (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • RePEc: Research Papers in Economics (submittedVersion)
  • Newcastle University ePrints (Newcastle Univesity) (cc-by)
Funders
  • Wellcome Trust (086561)
  • National Institute for Health and Care Research (ACF-2009-01-004)
  • Medical Research Council (G0802195, K501396)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neural Engineering
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural dynamics and brain function
  • Life Sciences › Neuroscience › Cognitive Neuroscience › EEG and Brain-Computer Interfaces
Keywords
local field potentials, biofeedback, brain-computer interface, motor cortex, microelectrode arrays, neural prostheses, slow potentials, monkeys, real-time feedback, neural decoding
MeSH terms
Action Potentials, Animals, Electrodes, Implanted, Female, Macaca mulatta, Neurons, Neurofeedback, Brain-Computer Interfaces

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