Results 81 to 90 of about 50,225 (239)

Early synapsids neurosensory diversity revealed by CT and synchrotron scanning

The Anatomical Record, EarlyView.
Abstract Non‐mammaliaform synapsids (NMS) represent the closest relatives of today's mammals among the early amniotes. Exploring their brain and nervous system is key to understanding how mammals evolved. Here, using CT and Synchrotron scanning, we document for the first time three extreme cases of neurosensory and behavioral adaptations that probe ...
J. Benoit, R. Araujo, E. S. Lund, A. Bolton, T. Lafferty, Z. Macungo, V. Fernandez   +6 more
wiley   +1 more source

Predicting ecology and hearing sensitivities in Parapontoporia—An extinct long‐snouted dolphin

The Anatomical Record, EarlyView.
Abstract Analyses of the cetacean (whale and dolphin) inner ear provide glimpses into the ecology and evolution of extinct and extant groups. The paleoecology of the long‐snouted odontocete (toothed whale) group, Parapontoporia, is primarily marine with its depositional context also suggesting freshwater tolerance.
Joyce Sanks, Rachel Racicot
wiley   +1 more source

A Clinical Feasibility Study of Spinal Evoked Compound Action Potential Estimation Methods

Neuromodulation: Technology at the Neural Interface, EarlyView., 2021
Abstract Objectives Spinal cord stimulation (SCS) is a treatment for chronic neuropathic pain. Recently, SCS has been enhanced further with evoked compound action potential (ECAP) sensing. Characteristics of the ECAP, if appropriately isolated from concurrent stimulation artifact (SA), may be used to control, and aid in the programming of, SCS systems.
Krishnan Chakravarthy, James FitzGerald, Andrew Will, Karen Trutnau, Robert Corey, David Dinsmoor, Leonid Litvak   +6 more
wiley   +1 more source

Activity of nAChRs containing α9 subunits modulates synapse stabilization via bidirectional signaling programs [PDF]

, 2009
Although the synaptogenic program for cholinergic synapses of the neuromuscular junction is well known, little is known of the identity or dynamic expression patterns of proteins involved in non-neuromuscular nicotinic synapse development.
Elgoyhen, Ana Belen, Murthy, Vidya, Taranda, Julian, Vetter, Douglas E.   +3 more
core   +1 more source

Postnatal Development of Microglia-Like Cells in Mouse Cochlea

Neural Plasticity, 2018
Microglial cells are involved in surveillance and cleaning of the central nervous system. Recently, microglial-like cells (MLC) have been found in an adult cochlea and investigated for their role in cochlear inflammation. The presence and potential roles
Penghui Chen, Yongchuan Chai, Haijin Liu, Gen Li, Longhao Wang, Tao Yang, Hao Wu   +6 more
doaj   +1 more source

Intrinsically Self-renewing Neuroprogenitors From the A/J Mouse Spiral Ganglion as Virtually Unlimited Source of Mature Auditory Neurons

Frontiers in Cellular Neuroscience, 2020
Nearly 460 million individuals are affected by sensorineural hearing loss (SNHL), one of the most common human sensory disorders. In mammals, hearing loss is permanent due to the lack of efficient regenerative capacity of the sensory epithelia and spiral
Francis Rousset, Vivianne B. C. Kokje, Vivianne B. C. Kokje, Rebecca Sipione, Dominik Schmidbauer, German Nacher-Soler, Sten Ilmjärv, Marta Coelho, Stefan Fink, François Voruz, François Voruz, Antoun El Chemaly, Antoine Marteyn, Hubert Löwenheim, Karl-Heinz Krause, Marcus Müller, Rudolf Glückert, Pascal Senn, Pascal Senn   +18 more
doaj   +1 more source

The morphology of the oval window in Paranthropus robustus compared to humans and other modern primates

The Anatomical Record, EarlyView.
Abstract The oval window (OW) is an opening connecting the inner and middle ear. Its area has been shown to consistently scale with body mass (BM) in primates, and has been used alongside semi‐circular canal (SCC) size to differentiate Homo sapiens and fossil hominins, including Paranthropus robustus.
Ruy Fernandez, José Braga
wiley   +1 more source

Cellular glutathione content in the organ of Corti and its role during ototoxicity. [PDF]

, 2015
Glutathione (GSH) is the major scavenger of reactive oxygen species (ROS) inside cells. We used live confocal imaging in order to clarify the role of GSH in the biology of the organ of Corti, the sensory epithelium of the cochlea, before, during and ...
Duchen, MR, Gale, JE, Majumder, P
core   +1 more source

Artificial hearing systems based on functional cochlea models

International Journal of Extreme Manufacturing
The cochlea is one of the most complex organs in the human body, exhibiting a complex interplay of characteristics in acoustic, mechanical, electrical, and biological functions.
Jinke Chang, Sita Tarini Clark, Iwan Roberts, Filip Hrncirik, Zhipeng Zhang, Manohar Bance   +5 more
doaj   +1 more source

Fast Waves at the Base of the Cochlea.

PLoS ONE, 2015
Georg von Békésy observed that the onset times of responses to brief-duration stimuli vary as a function of distance from the stapes, with basal regions starting to move earlier than apical ones.
Alberto Recio-Spinoso, William S Rhode
doaj   +1 more source