Cited by 105Neuroscience and Neural EngineeringPhotoreceptor and optogenetics researchOptical Imaging and Spectroscopy Techniques

The DOI matches its Crossref record; 160 of the 161 references it cites were found in a registry or an index.

Optical Stimulation of Neurons

Open access
C. Thompson, Alexander, R. Stoddart, Paul, Jansen, E. Duco·2015·Current Molecular Imaging

Abstract

Our capacity to interface with the nervous system remains overwhelmingly reliant on electrical stimulation devices, such as electrode arrays and cuff electrodes that can stimulate both central and peripheral nervous systems. However, electrical stimulation has to deal with multiple challenges, including selectivity, spatial resolution, mechanical stability, implant-induced injury and the subsequent inflammatory response. Optical stimulation techniques may avoid some of these challenges by providing more selective stimulation, higher spatial resolution and reduced invasiveness of the device, while also avoiding the electrical artefacts that complicate recordings of electrically stimulated neuronal activity. This review explores the current status of optical stimulation techniques, including optogenetic methods, photoactive molecule approaches and infrared neural stimulation, together with emerging techniques such as hybrid optical-electrical stimulation, nanoparticle enhanced stimulation and optoelectric methods. Infrared neural stimulation is particularly emphasised, due to the potential for direct activation of neural tissue by infrared light, as opposed to techniques that rely on the introduction of exogenous light responsive materials. However, infrared neural stimulation remains imperfectly understood, and techniques for accurately delivering light are still under development. While the various techniques reviewed here confirm the overall feasibility of optical stimulation, a number of challenges remain to be overcome before they can deliver their full potential.

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Crossref · 10.2174/2211555203666141117220611

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160 of 160 references verified0 citation errors · 0 not checkable

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Figures

Fig. (1) (a) 3D reconstruction of a guinea pig cochlea during stimulation. Black cylinder shows the position of the optical fibre, black dots indicates the spiral ganglion neurons, green dots are the inner pillar feet. (See online for colour) (b) The spatial tuning curve obtained from recordings of the ICC, showing stimulation at 10.8 kHz and 16.1 kHz. Fig. reproduced from [84], with permission from Elsevier.
Fig. (1) (a) 3D reconstruction of a guinea pig cochlea during stimulation. Black cylinder shows the position of the optical fibre, black dots indicates the spiral ganglion neurons, green dots are the inner pillar feet. (See online for colour) (b) The spatial tuning curve obtained from recordings of the ICC, showing stimulation at 10.8 kHz and 16.1 kHz. Fig. reproduced from [84], with permission from Elsevier.CC BY-NC · PubMed Central
Fig. (2) Example of temperature measurement (left) and change in cell membrane potential (right) during and after exposure to INS. Adapted by permission from Macmillan Publishers Ltd: Nature Communications [56], copyright (2012).
Fig. (2) Example of temperature measurement (left) and change in cell membrane potential (right) during and after exposure to INS. Adapted by permission from Macmillan Publishers Ltd: Nature Communications [56], copyright (2012).CC BY-NC · PubMed Central
Fig. (3) Absorption coefficient in water [140] and oxygenated blood (5% haematocrit) [141]. Reduced scattering coefficient in dermis [142] and white matter [142] over the wavelength range of 200 nm to 2500 nm. Wavelength ranges commonly used for Optogenetics (380 – 650 nm), INS (1400 – 2200 nm) and Nanoparticle Enhanced INS (700 – 900 nm) are highlighted. Vertical dashed grey lines show the therapeutic window where absorption and scattering is relatively low.
Fig. (3) Absorption coefficient in water [140] and oxygenated blood (5% haematocrit) [141]. Reduced scattering coefficient in dermis [142] and white matter [142] over the wavelength range of 200 nm to 2500 nm. Wavelength ranges commonly used for Optogenetics (380 – 650 nm), INS (1400 – 2200 nm) and Nanoparticle Enhanced INS (700 – 900 nm) are highlighted. Vertical dashed grey lines show the therapeutic window where absorption and scattering is relatively low.CC BY-NC · PubMed Central
Fig. (4) SEM image of (a) silicon Utah slant optrode array and (b) glass optrode array reproduced from [153], with permission from SPIE.
Fig. (4) SEM image of (a) silicon Utah slant optrode array and (b) glass optrode array reproduced from [153], with permission from SPIE.CC BY-NC · PubMed Central
Fig. (5) Heating from different stimulation rates with INS, when using a fibre with core diameter of 200 μm and NA = 0.22, with a wavelength of 1850 nm and pulse energy of 25 µJ. a) Over 1 second b) over 10 seconds. Reproduced from [160].
Fig. (5) Heating from different stimulation rates with INS, when using a fibre with core diameter of 200 μm and NA = 0.22, with a wavelength of 1850 nm and pulse energy of 25 µJ. a) Over 1 second b) over 10 seconds. Reproduced from [160].CC BY-NC · PubMed Central

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Research works printed but not linked: 1

  1. [142]Vo-Dinh T Biomedical photonics 2003 handbook CRC Press

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Metadata

Authors
C. Thompson, A., R. Stoddart, P., & Jansen, E. D.
Venue
Current Molecular Imaging
Published
2015-02-04
Volume
3
Issue
2
Pages
162-177
ISSN
  • 2211-5544 (ISSN-L)
  • 2211-5552
OpenAlex
W1967609781
Cited by
105
References
161
Citations by year
2026: 3 · 2025: 8 · 2024: 7 · 2023: 12 · 2022: 4 · 2021: 12 · 2020: 11 · 2019: 18 · 2018: 10 · 2017: 12 · 2016: 7 · 2015: 1
FWCI
3.05
Type
journal article
Language
en
Open access
Licence
cc-by-nc
Locations
  • Current molecular imaging (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by-nc)
  • PubMed Central (publishedVersion, cc-by-nc)
  • PubMed (publishedVersion)
  • Swinburne figshare (Swinburne University of Technology) (submittedVersion)
Funders
National Institute of Neurological Disorders and Stroke (R01NS052407)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neural Engineering
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Photoreceptor and optogenetics research
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Optical Imaging and Spectroscopy Techniques
Keywords
optical neural stimulation, optogenetics, photoactive molecules, infrared neural stimulation, neural interfaces, light delivery, implant-induced inflammation

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