Results 81 to 90 of about 920,707 (289)

Short-term synaptic plasticity regulates the level of olivocochlear inhibition to auditory hair cells [PDF]

open access: yes, 2011
In the mammalian inner ear, the gain control of auditory inputs is exerted by medial olivocochlear (MOC) neurons that innervate cochlear outer hair cells (OHCs).
Ballestero, Jimena Andrea   +5 more
core   +1 more source

3D anatomical atlas of the heads of male and female adult Chamaeleo calyptratus

open access: yesThe Anatomical Record, EarlyView.
The veiled chameleon is a model organism in reptile development research. Utilizing contrast‐enhanced microCT and deep learning segmentation models, we have generated the first digital atlases of the skull, nervous system, cranial muscles and hyolingual muscles.
Alice Leavey   +3 more
wiley   +1 more source

Development of a feline model for preclinical research of a new translabyrinthine auditory nerve implant

open access: yesFrontiers in Neuroscience
Cochlear implants are among the most successful neural prosthetic devices to date but exhibit poor frequency selectivity and the inability to consistently activate apical (low frequency) spiral ganglion neurons. These issues can limit hearing performance
W. Mitchel Thomas   +12 more
doaj   +1 more source

Why do axons differ in caliber? [PDF]

open access: yes, 2012
CNS axons differ in diameter (d) by nearly 100-fold (∼0.1-10 μm); therefore, they differ in cross-sectional area (d(2)) and volume by nearly 10,000-fold.
Balasubramanian, Vijay   +4 more
core   +2 more sources

Redescription of the Triassic cynodont Cistecynodon parvus and reassessment of its phylogeny

open access: yesThe Anatomical Record, EarlyView.
Abstract Cynodontia is an important subclade of Therapsida that first occurred in the late Permian. It includes extinct subclades which are the non‐mammaliaform cynodonts and Mammaliaformes, with the latter ultimately giving rise to crown mammals. The systematics of non‐mammaliaform cynodonts has been extensively studied and is relatively well‐resolved,
Erin S. Lund   +4 more
wiley   +1 more source

Herniation of the Mastoid Segment of the Facial Nerve During Cochlear Implantation Surgery

open access: yesEar, Nose & Throat Journal
Background: We aim to report a rare case of a herniated mastoid segment of the facial nerve that was accidently discovered during cochlear implantation surgery and how altering the surgery plan could achieve the implantation while preserving the nerve ...
Mohammad Almohammad   +3 more
doaj   +1 more source

Complications of cochlear implantation surgery in Zagazig University Hospitals

open access: yesThe Egyptian Journal of Otolaryngology, 2021
Background Cochlear implantation (CI) has been established worldwide as the surgical treatment for individuals with bilateral severe to profound hearing loss.
Alaa Eldin M. Elfeky   +4 more
doaj   +1 more source

Perilymph pharmacokinetics of marker applied through a cochlear implant in guinea pigs [PDF]

open access: yes, 2017
Patients undergoing cochlear implantation could benefit from a simultaneous application of drugs into the ear, helping preserve residual low-frequency hearing and afferent nerve fiber populations.
Salt, Alec   +5 more
core   +3 more sources

Oldest well‐preserved euprimate petrosal, from the early Eocene of India (Vastan Lignite Mine, Gujarat)

open access: yesThe Anatomical Record, EarlyView.
Abstract An exquisitely preserved, isolated partial petrosal with associated fragmentary stapes is described from the Vastan Lignite Mine (Gujarat, India), dated to the early Eocene (~54.5 Ma). Several anatomical traits (e.g., large petrosal plate; posterolateral entry of the internal carotid artery to the tympanic cavity; bony tubes surrounding the ...
Mary T. Silcox   +8 more
wiley   +1 more source

Tone-in-noise detection deficits in elderly patients with clinically normal hearing [PDF]

open access: yes, 2019
One of the most common complaints among the elderly is the inability to understand speech in noisy environments. In many cases, these deficits are due to age-related hearing loss; however, some of the elderly that have difficulty hearing in noise have ...
Cappelli, Giampietro   +6 more
core   +1 more source

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