Results 41 to 50 of about 23,868 (222)

A perspective from the Mesozoic: Evolutionary changes of the mammalian skull and their influence on feeding efficiency and high‐frequency hearing

The Anatomical Record, EarlyView.
Abstract The complex evolutionary history behind modern mammalian chewing performance and hearing function is a result of several changes in the entire skeletomuscular system of the skull and lower jaw. Lately, exciting multifunctional 3D analytical methods and kinematic simulations of feeding functions in both modern and fossil mammals and their ...
Julia A. Schultz
wiley   +1 more source

Complications of cochlear implantation surgery in Zagazig University Hospitals

The 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, Adly A. Tantawy, Asmaa M. Ibrahim, Ibrahim M. Saber, Said Abdel-Monem   +4 more
doaj   +1 more source

Intraspecific variation of cochlear morphology in bowhead and beluga whales

The Anatomical Record, EarlyView.
Abstract The bony labyrinth of the petrosal bone, a distinctive feature of mammal skulls, is often identified in micro‐computed tomography imaging to infer species' physiological and ecological traits. When done as part of a comparative study, one individual specimen is normally considered representative of a species, and intraspecific variation is ...
John Peacock, J. G. M. Thewissen
wiley   +1 more source

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

Frontiers 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, Steven A. Zuniga, Inderbir Sondh, Moritz Leber, Florian Solzbacher, Florian Solzbacher, Thomas Lenarz, Hubert H. Lim, Hubert H. Lim, David J. Warren, David J. Warren, Loren Rieth, Meredith E. Adams   +12 more
doaj   +1 more source

Electrically evoked auditory brainstem response in cochlear implantation: what you need to know (short review)

The Egyptian Journal of Otolaryngology, 2022
Background Electrically evoked auditory brainstem response (E-ABR) is an evoked potential recorded from the auditory nerve in response to electric stimulation. It is considered a short latency evoked potential. It plays a vital role, especially after the
Nashwa Nada, Enaas Kolkaila, Philipp Schendzielorz, Trandil El Mahallawi   +3 more
doaj   +1 more source

Statistical shape modeling of the human inner ear through micro‐computed tomography imaging

The Anatomical Record, EarlyView.
In this study, 54 cadaveric temporal bone specimens underwent high‐resolution micro‐CT imaging. Images were semi‐automatically segmented and converted to 3D surface mesh models for morphological measurement and analysis. Statistical shape models were created for the inner ear, cochlea, and vestibular system, as well as for sex‐ and side‐based subgroups.
Carmine Spedaliere, Alexandra Vaupotic, Jaehyun Hwang, Khalil Husein, Mustafa Hafidh, Kyle Rioux, S. Alireza Rohani, Sumit K. Agrawal, Hanif M. Ladak   +8 more
wiley   +1 more source

Addition of exogenous NAD+ prevents mefloquine-induced neuroaxonal and hair cell degeneration through reduction of caspase-3-mediated apoptosis in cochlear organotypic cultures. [PDF]

PLoS ONE, 2013
Mefloquine is widely used for the treatment of malaria. However, this drug is known to induce neurological side effects including depression, anxiety, balance disorder, and sensorineural hearing loss.
Dalian Ding, Weidong Qi, Dongzhen Yu, Haiyan Jiang, Chul Han, Mi-Jung Kim, Kana Katsuno, Yun Hua Hsieh, Takuya Miyakawa, Richard Salvi, Masaru Tanokura, Shinichi Someya   +11 more
doaj   +1 more source

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

The 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, Eloy Gálvez‐López, Anthony Herrel, Laura B. Porro   +3 more
wiley   +1 more source

Restudy of malformations of the internal auditory meatus, cochlear nerve canal and cochlear nerve [PDF]

European Archives of Oto-Rhino-Laryngology, 2014
The present study aims to restudy the correlation between the internal auditory meatus (IAM), the cochlear nerve canal (CNC), the cochlear nerve (CN) and inner ear malformations. In this retrospective study design, the abnormal diameter of the IAM, CNC and CN in patients with any kind of inner ear malformations was evaluated using multi-slice spiral ...
Li, Youjin, Yang, Jun, Liu, Jinfen, Wu, Hao   +3 more
openaire   +2 more sources

Hominoid‐specific calretinin‐immunopositivity of the optic radiation (geniculocalcarine tract)

The Anatomical Record, EarlyView.
Calretinin‐immunostained coronal section through the primary (V1) and extrastriate (ExSt) cortex of the lar gibbon. Note that the optic radiation (OR) is strongly calretinin‐immunoreactive. This calretinin‐immunopositivity of the OR distinguishes the Hominoidea from other primates in terms of the neurochemistry of the OR.
Nelyane N. M. Santana, Jordan Swiegers, Mads F. Bertelsen, Chet C. Sherwood, José R. L. P. Cavalcanti, Paul R. Manger   +5 more
wiley   +1 more source