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Laser Stimulation of Single Auditory Nerve Fibers by Philip D. Littlefield; Irena Vujanovic; Jagmeet Mundi; Agnella Izzo Matic; Claus‐Peter Richter is a Medicine article available to read on EtoBox.
What is Laser Stimulation of Single Auditory Nerve Fibers about?
## Abstract ## Objectives/Hypothesis: One limitation with cochlear implants is the difficulty stimulating spatially discrete spiral ganglion cell groups because of electrode interactions. Multipolar electrodes have improved on this some, but also at the cost of much higher device power consumption. Recently, it has been shown that spatially selective stimulation of the auditory nerve is possible with a mid‐infrared laser aimed at the spiral ganglion via the round window. However, these neurons must be driven at adequate rates for optical radiation to be useful in cochlear implants. We herein use single‐fiber recordings to characterize the responses of auditory neurons to optical radiation. ## Study Design: In vivo study using normal‐hearing adult gerbils. ## Methods: Two diode lasers were used for stimulation of the auditory nerve. They operated between 1.844 μm and 1.873 μm, with pulse durations of 35 μs to 1,000 μs, and at repetition rates up to 1,000 pulses per second (pps). The laser outputs were coupled to a 200‐μm‐diameter optical fiber placed against the round window membrane and oriented toward the spiral ganglion. The auditory nerve was exposed through a craniotomy, and re
Who reads Laser Stimulation of Single Auditory Nerve Fibers?
It is typically read by researchers, students, and practitioners in Medicine.
- Author
- Philip D. Littlefield; Irena Vujanovic; Jagmeet Mundi; Agnella Izzo Matic; Claus‐Peter Richter
- Publisher
- John Wiley and Sons; Wiley (John Wiley & Sons); Wiley-Blackwell; Wiley (ISSN 0023-852X)
- Published
- 2010
- Language
- EN
- Field
- Medicine (Health Sciences)