Auditory Prosthesis
Auditory Prosthesis - Related Videos
08:08
Oscillation and Reaction Board Techniques for Estimating Inertial Properties of a Below-knee Prosthesis
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Cited by 35 •
2014
Body segmental inertial properties are required for inverse dynamics modeling. Using an oscillation and reaction board technique, inertial properties of below-knee prostheses were measured. Using direct measures of prosthesis inertia in the inverse dynamics model of the prosthetic leg resulted in lower magnitudes of resultant joint forces and moments.
10:14
In Ovo Electroporation in the Chicken Auditory Brainstem
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Auditory brainstem neurons of avians and mammals are specialized for fast neural encoding, a fundamental process for normal hearing functions. These neurons arise from distinct precursors of embryonic hindbrain. We present techniques utilizing electroporation to express genes in the hindbrain of chicken embryos to study gene function during auditory development.
07:58
Direct Visualization of the Murine Dorsal Cochlear Nucleus for Optogenetic Stimulation of the Auditory Pathway
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Cited by 10 •
2015
The goal of this protocol is to outline a surgical approach to provide direct access to the dorsal cochlear nucleus in a murine model.
08:46
A Standardized Method for Measuring Internal Lung Surface Area via Mouse Pneumonectomy and Prosthesis Implantation
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Cited by 22 •
2017
Internal lung surface area (ISA) is a critical criterion for assessing lung morphology and physiology in lung diseases and injury-induced alveolar regeneration. We describe here a standardized method that can minimize the measurement bias for ISA in both lung pneumonectomy and prosthesis implantation mouse models.
02:22
Measuring the Auditory Brainstem Response in Mice
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2025
Source: Lee, D., et. al. Modified Experimental Conditions for Noise-Induced Hearing Loss in Mice and Assessment of Hearing Function and Outer Hair Cell Damage. J. Vis. Exp. (2023)This video demonstrates the measurement of auditory brainstem response (ABR) in a mouse. Electrodes are placed on the head, behind the ear, and near the tail of an anesthetized mouse. Acoustic stimuli at various intensities are delivered, and electric signals generated are recorded as waveforms.
FAQs
An implanted electrode array delivers patterned electrical stimulation to the auditory nerve rather than relying on damaged cochlear hair cells. The speech processor first separates and codes sound features, so the resulting patterns represent selected aspects of sound in a form the nervous system can use. This organization is central to how cochlear implants support auditory function.
Auditory prostheses differ mainly in the route used to reach the nervous system. Cochlear implants use an implanted electrode array, whereas other devices transmit vibrations through bone or provide direct neural stimulation. Comparing these pathways helps distinguish which parts of the auditory system remain usable and explains why prostheses can address hearing loss through different biological interfaces.
Neural plasticity is important because the nervous system can adapt to patterned input from a prosthesis. In neuroscience, observing how auditory function changes with device-generated signals provides a way to study sensory coding and the nervous system’s response to an altered auditory pathway. This makes auditory prostheses both clinical tools and experimental systems.
A cochlear-implant workflow links three stages: microphones detect incoming sound, the speech processor separates and codes its features, and the implanted electrode array delivers the resulting stimulation to the auditory nerve. Keeping these stages conceptually distinct helps researchers analyze whether a device’s output reflects sound detection, feature processing, or neural delivery.
Researchers and clinicians consider auditory prostheses when severe hearing loss limits sound awareness or communication. The expected value is not only restoration or improvement of hearing-related function, but also access to neural pathways that can support auditory signals. Outcomes therefore include practical communication benefits and information about how the nervous system handles artificial input.
In neuroscience, these devices offer a controlled way to examine the relationship between sound features and neural signals. A processor can code features before stimulation reaches the auditory nerve, allowing investigators to connect engineered signal patterns with auditory function. This perspective links device performance to broader questions about sensory coding, pathway access, and neural plasticity.