Results 301 to 310 of about 1,994,891 (358)

Basilar membrane responses to broadband stimuli

The Journal of the Acoustical Society of America, 2000
Basilar membrane (BM) responses to two types of broadband stimuli—clicks and Schroeder-phase complexes—were recorded at several sites at the base of the chinchilla cochlea. Recording sites (characteristic frequency, CF, in the range of 5.5–18 kHz) span the 1–4-mm basal region of the basilar membrane.
A, Recio, W S, Rhode
openaire   +2 more sources

Apical Basilar Membrane Herniations and Hydrops

Archives of Otolaryngology - Head and Neck Surgery, 1970
A herniation of cochlear epithelial cells through the apical basilar membrane was recognized in five squirrel monkeys and in two cats in the presence of endolymphatic hydrops. A transmeatal labyrinthotomy was performed on six of these animals. These six developed marked hyperplastic changes in the vestibule and the lower turn of the cochlea. Except for
T, Hoshino, M M, Paparella
openaire   +2 more sources

Cochlear drainage and basilar membrane tuning

The Journal of the Acoustical Society of America, 1982
We have demonstrated that drainage of the scala tympani, even though it produces a large loss of sensitivity, does not produce a change in best frequency.
R, Patuzzi, P M, Sellick, B M, Johnstone
openaire   +2 more sources

Basilar-membrane nonlinearity estimated by pulsation threshold

The Journal of the Acoustical Society of America, 2000
The pulsation threshold technique was used to estimate the basilar-membrane (BM) response to a tone at characteristic frequency (CF). A pure-tone signal was alternated with a pure-tone masker. The frequency of the masker was 0.6 times that of the signal.
Plack, Christopher J., Oxenham, Andrew J.   +1 more
openaire   +3 more sources

Lipidosis of the Basilar Membrane

Acta Oto-Laryngologica, 1970
Lipidosis of the basilar membrane was described as a type of presbyacusis. The concept was based on observations of 24 ears from 20 patients, whose ages ranged from 71 to 95 years. Several staining procedures were employed to the basilar membrane. Six ears from younger patients were used as a control.
openaire   +2 more sources

Basilar Membrane Tuning in the Cat Cochlea

Science, 1982
The mechanical response of the basilar membrane changes mainly in the peak region with trauma to the cochlea. Basilar membrane tuning curves measured in cochleas with reduced trauma begin to look similar to tuning curves of auditory nerve fibers.
S M, Khanna, D G, Leonard
openaire   +2 more sources

Basilar Membrane Vibration in the Gerbil Hemicochlea

Journal of Neurophysiology, 1998
Richter, Claus-Peter, Burt N. Evans, Roxanne Edge, and Peter Dallos. Basilar membrane vibration in the gerbil hemicochlea. J. Neurophysiol. 79: 2255–2264, 1998. Excised gerbil cochleae were cut along the mid-modiolar plane (hemicochlea). Along one-half turn of this preparation, fluorescent microbeads were placed on the basilar membrane (BM).
C P, Richter, B N, Evans, R, Edge, P, Dallos   +3 more
openaire   +2 more sources

Mechanical Properties of Basilar Membrane

Acta Oto-Laryngologica, 1978
A fresh basilar membrane has different mechanical properties in the radial and in the longitudinal directions. When pressure with a needle is exerted on the basilar membrane, a narrow radially oriented strip is deflected. The form of the deflection can be deduced from the pathological consequences of the acoustic trauma as well.
openaire   +2 more sources

Basilar membrane measurements and the travelling wave

Hearing Research, 1986
From the original measurements of G. von Békésy (1942) until a few years ago, the basilar membrane was considered to undergo simple passive linear vibration. Recent measurements have completely altered this notion. It is now known that the BM is highly non linear and very sharply tuned.
B M, Johnstone, R, Patuzzi, G K, Yates
openaire   +2 more sources

In vivo measurement of basilar membrane stiffness

The Journal of the Acoustical Society of America, 1990
Basilar membrane stiffness measurements were made in the base of the gerbil cochlea. Basilar membrane stiffness was determined by contacting the basilar membrane with a stainless steel needle (tip diameter 25 μm) attached to a force transducer, putting the needle/transducer structure through a low-frequency sinusoidal excursion with amplitude 5 or 25 ...
E S, Olson, D C, Mountain
openaire   +2 more sources