Cited by 40Neuroscience and Neural EngineeringPhotoreceptor and optogenetics researchVagus Nerve Stimulation Research

Optical stimulation of neural tissue

Open access
Richardson, Rachael Theresa, Ibbotson, Michael R., Thompson, Alexander C., Wise, Andrew K., Fallon, James B.·2020·Healthcare Technology Letters

Abstract

Electrical stimulation has been used for decades in devices such as pacemakers, cochlear implants and more recently for deep brain and retinal stimulation and electroceutical treatment of disease. However, current spread from the electrodes limits the precision of neural activation, leading to a low quality therapeutic outcome or undesired side‐effects. Alternative methods of neural stimulation such as optical stimulation offer the potential to deliver higher spatial resolution of neural activation. Direct optical stimulation is possible with infrared light, while visible light can be used to activate neurons if the neural tissue is genetically modified with a light sensitive ion channel. Experimentally, both methods have resulted in highly precise stimulation with little spread of activation at least in the cochlea, each with advantages and disadvantages. Infrared neural stimulation does not require modification of the neural tissue, but has very high power requirements. Optogenetics can achieve precision of activation with lower power, but only in conjunction with targeted insertion of a light sensitive ion channel into the nervous system via gene therapy. This review will examine the advantages and limitations of optical stimulation of neural tissue, using the cochlea as an exemplary model and recent developments for retinal and deep brain stimulation.

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Crossref · 10.1049/htl.2019.0114

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  • The efficacy of INS can be limited due to its reliance on the cell's thermal absorption.

    “However, the efficacy of INS can be limited due to its reliance on the cell's thermal absorption [109].”

    From Active Neural Interface Circuits and Systems for Selective Control of Peripheral Nerves: A Review (2024) · cites this paper as [109]

    The Infrared neural stimulation section identifies high energy requirements and potential thermal tissue damage as restrictions on INS. It says INS relies on water absorption of light, however, not specifically on a cell’s thermal absorption; it also describes heat-mediated activation as a hypothesis rather than a settled mechanism. Page numbers are unavailable in our copy. (LLM, conf=0.86)

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Authors
Richardson, R. T., Ibbotson, M. R., Thompson, A. C., Wise, A. K., & Fallon, J. B.
Affiliations
  • Bionics Institute (AU)
  • The University of Melbourne (AU)
Corresponding author
Richardson, Rachael Theresa
Venue
Healthcare Technology Letters
Published
2020-06
Volume
7
Issue
3
Pages
58-65
ISSN
2053-3713 (ISSN-L)
OpenAlex
W3026689292
Cited by
40
References
108
Citations by year
2026: 3 · 2025: 8 · 2024: 10 · 2023: 7 · 2022: 6 · 2021: 5 · 2020: 1
FWCI
2.18
Type
journal article
Language
en
Open access
Locations
  • Healthcare Technology Letters (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Minerva Access (University of Melbourne) (submittedVersion, cc-by)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • Garnett Passe and Rodney Williams Memorial Foundation
  • State Government of Victoria
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neural Engineering
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Photoreceptor and optogenetics research
  • Life Sciences › Neuroscience › Neurology › Vagus Nerve Stimulation Research
Keywords
optical neural stimulation, optogenetics, infrared neural stimulation, light-sensitive ion channels, cochlear stimulation, retinal stimulation, deep brain stimulation, gene therapy

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