Human sensory reception: Human sensory reception, means by which humans react to changes in external and internal environments. Ancient philosophers called the human senses “the windows of the soul,” and Aristotle described at least five senses—sight, hearing, smell, taste, and touch.
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Sound-evoked deflection of outer hair cell stereocilia leads to fast force production that will enhance auditory sensitivity up to 1, 000-fold.
. The amplitudes of reticular lamina vibration described below are similar to those found in living anesthetized guinea pigs at ≈70 dB sound pressure level (SPL) ( 17), ≈150 nm.
stereocilia, it is only natural.
A hypothesis for direct sensing of sound pressure by hair cells.
The fi rst is the usual acoustic pressure wave that,
Ear is the Excellent Acoustic Reader: The Effect of Acoustics on this Sophisticated.
pressure and displacement, through a medium such as air or water.
Miniature Biomimetic Acoustic Sensors.
microflows associated with pressure waves. • Stereocilia deflection is expected to be coherent over the whole nanotube array
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The cochlear amplifier is a surface.
Cells respond to acoustic pressure.
emerging from the resonant cavity and deliver it to the stereocilia of.
Full-Text Paper (PDF): Detection without deflection? A hypothesis for direct sensing of sound pressure by hair cells
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Over time, the hair cell’s hair-like stereocilia may get damaged or broken. If enough of them are damaged, hearing loss results.
procedure was exercised to determine the interior acoustic pressure fields due to each of the monopole control sources. A least mean square (LMS) algorithm11 was used to
Stereocilia • Stereocilia, Nature’s fundamental acoustic sensors found in all hearing living systems, are located on hair cells in the cochlea. Deflection of stereocilia, induced by shear in the endolymphatic fluid, generates neural impulses. • Stereocilia are also found in the lateral line of fish for water flow detection.
Full-Text Paper (PDF): Detection without deflection? A hypothesis for direct sensing of sound pressure by hair cells
Acoustic-structural coupling formulation to model feed-back coupling between the acoustic pressure and the structure.
Coustyx is a high performance acoustic.
In the inner ear, stereocilia are the mechanosensing organelles of hair cells, which respond to fluid motion in numerous types of animals for various functions, including hearing and balance. They are about 10–50 micrometers in length and share some similar features of microvilli. The hair cells turn the fluid pressure and .
Mar 31, 2011.
The model was dynamically calibrated at 200 Hz and 98 dB sound pressure level to match the reported horizontal motion (amplitude and phase) of the tallest stereocilia row reported previously [7], Fig. S1. This involved adjusting geometric and elastic parameters, resulting in values shown in Table S1.
The organ of Corti turns this mechanical function into electrical pulse trains in the fibers of the cochlear nerve, which then carries the information to the brain for analysis of the acoustic scene. "The organ of Corti contains two types of.
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Dec 31, 2007.
This amplification of the pressure of the airborne sound wave to set up fluid vibrations in the cochlea is related to two mechanisms. Firstly, the surface area of the.
as factory noises or loud music. These noises can irreversibly damage the stereocilia of the hair cells in the inner ear, leading to hearing loss.
Nov 3, 2005.
Amplification endows the human inner ear with a tremendous dynamic range; we respond to sound pressures spanning seven orders of magnitude. The frequency.
. Hair cells have 20 to 300 stereocilia, and many hair cells have a true cilium, the kinocilium, behind the tallest row of stereocilia. Mature.