Explain frequency/intensity coding and localization in the ear. (simplified)
Answers
The sound conduct from the tympanic for the member in the middle ear at cochlea in the inner ear. The ossicles for a Tympanic membrane to the country is called eardrum.
From the movement in the stapes will face plate to each sound vibration to an amplitude movement of each sound wave. There will be a pressure to propagate from a vibrating source outward.
Answer:
Intensity coding and localization of sound waves in ear:
Explanation:
If a sound has to be transmitted to the central nervous system, then the energy of the sound undergoes three transformations.
First, a sound is made up of air vibrations which are converted to vibrations of the tympanic membrane and ossicles of the middle ear. These, in turn, become vibrations in the fluid within the cochlea.
Finally, the fluid vibrations set up traveling waves along the basilar membrane that stimulate the hair cells of the organ of Corti. These cells convert the sound vibrations to nerve impulses in the fibers of the cochlear nerve
The cochlear nerve then transmits them to the brainstem, from which they are relayed, after extensive processing, to the primary auditory area of the cerebral cortex, the ultimate center of the brain for hearing.
Only when the nerve impulses reach this area does the listener become aware of the sound.
Thus the intensity coding and localization of the sound waves takes place in the ear.