Results 61 to 70 of about 456,304 (239)

Treatise on Hearing: The Temporal Auditory Imaging Theory Inspired by Optics and Communication [PDF]

arXiv, 2021
A new theory of mammalian hearing is presented, which accounts for the auditory image in the midbrain (inferior colliculus) of objects in the acoustical environment of the listener. It is shown that the ear is a temporal imaging system that comprises three transformations of the envelope functions: cochlear group-delay dispersion, cochlear time lensing,
arxiv  

Cytology of large neurons in the guinea pig dorsal cochlear nucleus contacting the inferior colliculus

European Journal of Histochemistry, 2009
Large neurons in the dorsal cochlear nucleus of the guinea pig which project to the inferior colliculus were identified after injections of the neural tracer WGA-HRP.
L Alibardi
doaj   +3 more sources

Stereological analysis of cholinergic neurons within bilateral pedunculopontine nuclei in health and when affected by Parkinson's disease

Brain Pathology, EarlyView.
(A) PPN‐cholinergic neurons degenerate during PD. We stereologically counted their rostro‐caudal distribution in post‐mortem PPNs in health versus PD. (Bi) Serial PPN‐containing samples were cholinergic antibody‐DAB stained. (Bii) Only DAB‐stained neurons on green lines and inside the box were counted.
Puneet Kumar Sharma, Steve Gentleman, David Trevor Dexter, Ilse Sanet Pienaar   +3 more
wiley   +1 more source

Sample size for a non-inferiority clinical trial with time-to-event data in the presence of competing risks [PDF]

Journal of Biopharmaceutical Statistics, 2018, 28:797-807, 2018
The analysis and planning methods for competing risks model have been described in the literatures in recent decades, and non-inferiority clinical trials are helpful in current pharmaceutical practice. Analytical methods for non-inferiority clinical trials in the presence of competing risks were investigated by Parpia et al., who indicated that the ...
arxiv   +1 more source

The evolution of an “owl‐like” auditory system in harriers: Anatomical evidence

Journal of Anatomy, EarlyView.
Harriers hunt relying on sound, with an accuracy to localize sound sources comparable with owls. To assess whether they have owl‐like auditory specializations, we analyzed brain and skull structures using histology and microCT scans. Harriers possess an enlarged external acoustic meatus and significantly expanded auditory brainstem nuclei, up to 12 ...
Sara Citron, Cristian Gutierrez‐Ibanez, Aubrey Keirnan, Vera Weisbecker, Douglas Wylie, Andrew N. Iwaniuk   +5 more
wiley   +1 more source

Cholinergic Modulation of Stimulus-Specific Adaptation in the Inferior Colliculus

Journal of Neuroscience, 2015
Neural encoding of an ever-changing acoustic environment is a complex and demanding process that depends on modulation by neuroactive substances. Some neurons of the inferior colliculus (IC) exhibit “stimulus-specific adaptation” (SSA), i.e., a decrease ...
Yaneri A Ayala, M. Malmierca
semanticscholar   +1 more source

Sleep neuroimaging: Review and future directions

Journal of Sleep Research, EarlyView.
Summary Sleep research has evolved considerably since the first sleep electroencephalography recordings in the 1930s and the discovery of well‐distinguishable sleep stages in the 1950s. While electrophysiological recordings have been used to describe the sleeping brain in much detail, since the 1990s neuroimaging techniques have been applied to uncover
Mariana Pereira, Xinyuan Chen, Anastasiya Paltarzhytskaya, Yibran Pacheсo, Nils Muller, Leonore Bovy, Xu Lei, Wei Chen, Haoran Ren, Chen Song, Laura D. Lewis, Thien Thanh Dang‐Vu, Michael Czisch, Dante Picchioni, Jeff Duyn, Philippe Peigneux, Enzo Tagliazucchi, Martin Dresler   +17 more
wiley   +1 more source

Electroanalysis and electrophysiological recording of bio‐doped conducting polymer‐modified neural electrodes

Annals of the New York Academy of Sciences, EarlyView.
Neural electrodes were modified with poly(3,4‐ethylenedioxythiophene) (PEDOT) doped with chondroitin sulfate or dextran sulfate. Electrochemical and acute electrophysiological recordings were undertaken. The effective electrode area had the strongest correlation with electrophysiological response.
Alexander R. Harris, Ben J. Allitt, Antonio G. Paolini   +2 more
wiley   +1 more source

GluN2C/D‐containing NMDA receptors enhance temporal summation and increase sound‐evoked and spontaneous firing in the inferior colliculus

The Journal of Physiology, EarlyView.
Abstract figure legend Here, we find that GluN2D‐containing NMDA receptors (NMDARs) are expressed by most vasoactive intestinal peptide neurons in the inferior colliculus (IC). These receptors are less susceptible to Mg2+ blockade compared to GluN2A/B‐containing NMDARs, allowing ions to flow at resting membrane potential.
Audrey C. Drotos, Rachel L. Zarb, Victoria Booth, Michael T. Roberts   +3 more
wiley   +1 more source

Simultaneous confidence intervals for an extended Koch-Röhmel design in three-arm non-inferiority trials [PDF]

Stat Methods Med Res. 2023; 32(9):1784-1798, 2022
Three-arm `gold-standard' non-inferiority trials are recommended for indications where only unstable reference treatments are available and the use of a placebo group can be justified ethically. For such trials several study designs have been suggested that use the placebo group for testing 'assay sensitivity', i.e.
arxiv