Cited by 38Neuroscience and Neural EngineeringRetinal Development and DisordersNeural dynamics and brain function

The response of retinal neurons to high-frequency stimulation

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Cai, Changsi, Twyford, Perry, Fried, Shelley·2013·Journal of Neural Engineering

Abstract

OBJECTIVE: High-rate pulse trains have proven to be effective in cochlear prosthetics and, more recently, have been shown to elicit a wide range of interesting response properties in axons of the peripheral nervous system. Surprisingly, the effectiveness of such trains for use in retinal prostheses has not been explored. APPROACH: Using cell-attached patch clamp methods, we measured the in vitro response of two rabbit retinal ganglion cell types, OFF-brisk transient (OFF-BT) and ON-OFF directionally selective (DS), to trains of biphasic pulses delivered at 2000 pulses per second (PPS). MAIN RESULTS: For OFF-BT cells, response onset occurred at ~20 µA, and maximum response occurred at ~40 µA. Interestingly, spiking levels decreased for further increases in amplitude. In contrast, DS cells had a spiking onset at ~25 µA and maintained strong spiking as stimulus amplitude was increased, even at the highest levels tested. Thus, a low-amplitude stimulus train at 2000 PPS (~25 µA) will activate OFF-BT cells strongly, while simultaneously activating DS cells only weakly. In contrast, a high amplitude train (~75 µA) will activate DS cells strongly while suppressing responses in OFF-BT cells. SIGNIFICANCE: The response differences between cell types suggest some forms of preferential activation may be possible, and further testing is warranted. Further, the scope of the response differences found here suggests activation mechanisms that are more complex than those described in previous studies.

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Authors
Cai, C., Twyford, P., & Fried, S.
Affiliations
Harvard University (US)
Corresponding author
  • Cai, Changsi
  • Twyford, Perry
  • Fried, Shelley
Venue
Journal of Neural Engineering
Published
2013-04-18
Volume
10
Issue
3
Pages
036009
ISSN
  • 1741-2552 (ISSN-L)
  • 1741-2560
OpenAlex
W1965445573
Cited by
38
References
63
Citations by year
2026: 1 · 2025: 1 · 2024: 3 · 2023: 1 · 2022: 5 · 2021: 5 · 2020: 5 · 2019: 3 · 2018: 3 · 2017: 1 · 2016: 6 · 2014: 4
FWCI
1.64
Type
journal article
Language
en
Open access
Locations
  • Journal of Neural Engineering (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • U.S. Department of Veterans Affairs (I01 RX000350)
  • National Eye Institute (R01EY019967)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neural Engineering
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Retinal Development and Disorders
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural dynamics and brain function
Keywords
retinal prosthesis, retinal ganglion cells, biphasic pulses, stimulus amplitude, neuronal spiking
MeSH terms
Action Potentials, Animals, Cells, Cultured, Electric Stimulation, Light, Models, Neurological, Photic Stimulation, Rabbits, Retinal Ganglion Cells, Long-Term Potentiation

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