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Topic: Hearing (sense)

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	Hearing (sense) - Wikipedia, the free encyclopedia
		Hearing, or audition, is one of the traditional five senses, and refers to the ability to detect sound.
		In human beings, hearing is performed by the ears, which also perform the function of balance, a sense in itself but not one of the traditional list (due to Aristotle).
		Snakes sense infrasound through their bellies, and there is evidence that whales and elephants may use it for communication.
	en.wikipedia.org /wiki/Hearing_(sense) (511 words)

	MSN Encarta - Hearing Aid
		Hearing aids have the same basic components as any public-address system, but all the components are miniature and the amplified sound is delivered to the ear of only the hearing-aid user.
		The microphone, amplifier (consisting of transistors and integrated electronic circuits), miniature receiver, and battery of a hearing aid are enclosed either in a chassis or shell, which is worn behind or within the ear or in the stem or temple portion of eyeglasses.
		If the hearing loss is caused by malformation of the ear canal or impaired function of the middle ear, a small vibrator may be clamped against the mastoid bone behind the ear with a headband; the sound is conducted by the vibrator through the bones of the head to the inner ear.
	encarta.msn.com /encnet/refpages/refarticle.aspx?refid=761565724 (456 words)

	Hearing - Wikipedia, the free encyclopedia
		hearing (sense) is the sense by which sound is perceived.
		a hearing (person) is one that has hearing within normal parameters as opposed to one who is deaf or hard-of-hearing.
		a hearing (law) is a proceeding before a court or other decisionmaking body or officer.
	en.wikipedia.org /wiki/Hearing (118 words)

	Co-Brand: The Daily Cat (Site not responding. Last check: 2007-11-07)
		Hearing is an important part of a cat's ability to hunt and fulfill his design as nature's perfect predator.
		Humans can hear frequencies from about 20 hertz to 20 kilohertz, dogs from about 20 hertz to 40 kilohertz, and cats from about 30 hertz to 60 kilohertz.
		Hearing is a large part of a cat's life, and Christensen says it is important to try to shield cats from loud, high-pitch noises such as sirens, which can greatly disturb them.
	www.thedailycat.com /cobrand/mind/communication/archive/senses_hearing (352 words)

	O. Orkin Insect Zoo: Basic Facts--Insect Senses
		Most sense organs of insects are microscopic in size and are found on their body wall.
		Sense organs, or sensilla, that function for taste and smell always have at least one small hole, or pore, through which the chemical molecules enter the organ.
		Most of the sense organs that respond to touch are small hairs with a nerve at their base.
	insectzoo.msstate.edu /Students/basic.senses.html (1180 words)

	Neuroexam.com - Hearing and Vestibular Sense (CN VIII)
		In conductive hearing loss, bone conduction is greater than air conduction, because bone conduction bypasses problems in the external or middle ear.
		In sensorineural hearing loss, air conduction is greater than bone conduction in both ears (as in normal hearing), however, hearing is decreased in the affected ear.
		Hearing loss can be caused by lesions in the acoustic and mechanical elements of the ear, the neural elements of the cochlea, or the acoustic nerve (CN VIII).
	www.neuroexam.com /content.php?p=23 (764 words)

	Hear-it: hearing, hearing loss, hard of hearing, hearing impairment. (Site not responding. Last check: 2007-11-07)
		Hear-it: hearing, hearing loss, hard of hearing, hearing impairment.
		It is important to understand that it only provides a reduced sense of hearing, not a fully restored hearing sense.
		A cochlear implant takes over the function of the damaged cochlear in the ear, in which some of the vital hair cells are missing.
	www.hear-it.org /printpage.dsp?printable=yes&page=352 (384 words)

	Hearing—Information about Hearing, Communication, and Understanding
		Students may believe that because each sense is specialized for a particular type of sensation, senses function by themselves and do not interact with one another or with the rest of the body.
		Research into hearing and communication is providing a scientific foundation for understanding the anatomy, physiology, and genetics of the hearing pathway, as well as the social and cultural aspects of human communication.
		Hearing loss often begins when a person is in his or her 20s, though it may not be noticed until the person is in his or her 50s.
	science.education.nih.gov /supplements/nih3/hearing/guide/info-hearing.htm (7881 words)

	Riddle of Humanity: Lecture Seven
		The physiologists are finally recognising and distinguishing the senses of life, of movement and of balance from one another, and they have begun to treat the senses of warmth and touch separately.
		Hearing is bound up with the organs of hearing, at least principally so, but it needs more besides — hearing involves much more of the organism than just the ear, which is what is normally thought of as the region of hearing.
		The eye is alive, the ear is alive, that which is the foundation of all the senses is alive; the basis of touch is alive — all of it is alive.
	wn.rsarchive.org /Lectures/Dates/19160812p01.html (5974 words)

	Hearing (sense) Info - Encyclopedia WikiWhat.com (Site not responding. Last check: 2007-11-07)
		Hearing is one of the traditional five senses, and refers to the ability to detect sound.
		Normal human ears are said to be sensitive in the range of frequency of 30Hz to 12KHz.
		Some individuals are able to hear up to 22KHz, and high-quality sound reproduction equipment often goes up to 16KHz or even beyond.
	www.wikiwhat.com /encyclopedia/h/he/hearing__sense_.html (247 words)

	On bicycling, the sense of hearing and headphones
		On bicycling, the sense of hearing and headphones
		The sense of balance, the sense of touch and the kinesthetic, proprioceptive sense (sense of body positioning), make it possible to ride a bicycle even with your eyes closed.
		But the role of headphones in causing bicycle accidents is, in my opinion, deeply confused by faulty assumptions about the sense of hearing, and by ill-conceived laws which place headphones in a special category separate from other factors affecting hearing.
	www.bikexprt.com /bicycle/hearing.htm (1860 words)

	Phonak hearing systems - Technology of hearing systems (Site not responding. Last check: 2007-11-07)
		The right choice of hearing instrument type and technology is determined by the individual hearing loss and anatomical features of the ear.
		Within the hearing instruments, acoustic signals are transformed at high speed and with great precision into a binary code.This allows much more complex calculations and adjustment of the amplified signal than is possible with analog technology.
		Hearing instruments with analog signal processing are not programmed via a PC but are adjusted manually by a hearingcare professional using a fine screwdriver.
	www.phonak.com /consumer/consumer_hearing/hearingsolutions.htm (439 words)

	Comments on Technology: What is the Best Hearing Aid?
		What we do have are relative comparisons relative to a person's previous or other hearing aids, to various adjustments on the one being tried, or to internalized predictions by the audiologist on what performance this person should obtain.
		But they don't answer the question that many people have, e.g., "is there some other hearing aid or other speech processing strategy than can help me hear better?" Certainly, there are other dimensions of hearing aid usage that we are concerned with, such as the quality of sounds and the comfort of listening.
		Still, the most significant dimension of all, the reason why people wear hearing aids in the first place, is the improvement of speech comprehension, and this is the one that still virtually remains in the "trial and error" stage By now, we should be able to do better.
	www.hearingresearch.org /dr.ross/besthearingaid.htm (794 words)

	The incredible Sense of Hearing
		From there the fibers continue to the medial geniculate complex of the thalamus and from where they reach the primary auditory memory center of the auditory cortex in the area known as Broadmann 41 and 42.
		Auditory function is a very difficult subject to comprehend due primarily to the diversity of cells and type of tissues that takes place in the processing of a signals reaching the ear.
		The efficiency of the ear is such, that if the eye was forced to distinguish the tremendous difference between the sound of a cannon and a whisper, it is likely that the person would have to protect the eye externally.
	www1.omi.tulane.edu /departments/pathology/fermin/Hearing.html (1808 words)

	Dogs > Form and Function > Hearing
		Their keen hearing helps them locate their prey, and their courage and speed help them catch it.
		Sharp hearing is important for all canines, domestic or wild.
		Dogs' excellent hearing was probably one of the first reasons we tolerated wolves and early dogs near our camps.
	www.nhm.org /exhibitions/dogs/formfunction/hearing.html (492 words)

	Neuroscience for Kids - The Ear
		The ears contain structures for both the sense of hearing and the sense of balance.
		This type of hearing loss may be caused by head injury, birth defects, high blood pressure or stroke.
		Gallaudet University in Washington, D.C. is an undergraduate institution for deaf and hard of hearing undergraduate students.
	staff.washington.edu /chudler/bigear.html (685 words)

	Hearing Is Easy [bradfitz.com] (Site not responding. Last check: 2007-11-07)
		I realized today while sitting in band that the sense of hearing is probably the easiest sense to use.
		Hearing is such a good sense because it requires nearly no effort compared to the other senses.
		When I am dead tired and actually want to sleep or say, study, I expect all of my senses to be equally dead.
	www.bradfitz.com /thoughts/thought.bml?hearingeasy (218 words)

	National Hearing Center - a prescription for better hearing
		We are dedicated to improving the lives of our clients by providing them with the hearing instrument best suited to their needs.
		We truly feel that every sense contributes to the quality of life and enriches the day-to-day living of all persons.
		Hearing loss can contribute to a sense of isolation and depression and our goal has always been to let our clients fully interact with the world around them.
	www.nationalhearingcenter.com (150 words)

	Neuroscience for Kids - Audition
		Our hearing mechanisms accomplish these tasks by sensing sound waves, which are changes in air pressure, and converting these changes into electrical signals that the brain can analyze and interpret.
		Although hearing begins with the ear flap or pinna, the receptor cells that change sound energy into the electrical currency of the nervous system lie deep inside the temporal bone of the skull.
		The ability to hear is not found as widely in the animal kingdom as some other senses (e.g., touch, taste and smell); it is restricted mainly to vertebrates and insects.
	staff.washington.edu /chudler/hearing.html (4766 words)

	Seniority: Exercise common sense: Heed hearing loss signs
		In some cases, hearing loss can be related to age and is called presbycusis, or hearing loss can be noise-induced, which includes exposure to extreme noises at close range such as a firecracker.
		In fact, according to a survey by the EAR Foundation and Clarity, hearing loss is more widespread among men and women from the ages of 40 and 59, and nearly half of baby boomers nationwide, or 38-million people, are having difficulty hearing.
		All those months, when I could not hear an airplane pass or when the television had to be turned to the max, or when phone conversations were nearly impossible, I saw my life filled with limitations.
	www.sptimes.com /2005/04/26/Seniority/Exercise_common_sense.shtml (926 words)

	Helen Beebe Speech and Hearing Center - Frequently Asked Questions (Site not responding. Last check: 2007-11-07)
		Almost all children with hearing loss have some amount of residual hearing that can be amplified and capitalized on to help them develop speech and language skills.
		If the sense of hearing is impaired, the brain will begin to rely on vision for communication.
		Children with normal hearing acquire language without being specifically taught, and have often mastered their first words by the age of one year.
	www.helenbeebe.org /faq.htm (1360 words)

	Can You Hear Me Now? The Special Sense of Hearing
		If you've often been exposed to loud noise levels or you have a family history of hearing loss, your sense of hearing may be impaired.
		Hearing difficulties aren't limited to the elderly alone.
		The Special Sense of Hearing” is January’s Live & Learn lecture at the KU School of Medicine-Wichita.
	www.kmuw.org /CanYouHearMeNowTheSpecialSenseofHearing.html (186 words)

	British Organizations For Deafblind People
		Whilst attending the Sense Family Centre in Ealing, London, with her son Gregory, Sheila was offered its facilities as a meeting place for the families that she had made contact with.
		Sense is one of the leading national voluntary organisations supporting and campaigning for deafblind people, their families, supporters and professionals who work with them.
		Sense has just started A new Membership Scheme, aimed at widening the participation of people connected to the charity, has just been introduced by Sense, the U K's leading charity working with people who are both deaf and blind.
	www.deafblind.co.uk /dbplaces_britain.html (3072 words)

	FamilyFun: Exploring the Senses: Your Sense of Hearing
		Hearing begins when sound, in the form of pressure waves, travels through the ear canal to the eardrum--a thin, stretched piece of tissue a third of an inch across.
		When you hear yourself speak on tape, you don't hear the vibrations that your vocal cords send through the bones in your head when you talk.
		They "hear" by sensing vibrations in the ground through their lower jaws.
	familyfun.go.com /parenting/learn/activities/feature/famf010101_famfsense1/famf010101_famfsense3.html (553 words)

	HeadWize - Article: A Bicyclist'S Sense Of Hearing: How Important? by John S. Allen
		This statement neglects the sense of balance, the sense of touch and the kinesthetic, proprioceptive sense (sense of body positioning), which actually make it possible to ride a bicycle -- even with your eyes closed.
		A bicyclist may sometimes hear a car a mile away under ideal, quiet conditions, upwind and on level terrain or across a valley.
		The sense of hearing has a resolution of about +- 3 degrees for sound sources directly to the front or rear.
	www.headwize.com /articles/jallen1_art.htm (1925 words)

	Your Gross and Cool Body: Hearing System
		Not only do your ears provide you with a rich and bountiful array of sounds to hear, they are sensitive instruments which help keep your sense of balance in a variety of ways.
		People who are entirely deaf, however, have to rely on their other senses even more to provide them with information about the world around them.
		They have a ridge that goes down the length of their body and allows them to "hear" pressure changes through their body.
	yucky.kids.discovery.com /flash/body/pg000144.html (737 words)

	The Master List of Limitations: Q - R (Site not responding. Last check: 2007-11-07)
		Description: For whatever reason, this character's hearing is not as sharp as it should be.
		This may mean that the character cannot smell certain odors, or perhaps smells things differently than from other people (for example, what may smell like perfume to a "normal" person may smell like bug spray to a person who suffers this Disadvantage).
		The loss of these senses can lead the character to have problems involving any task requiring careful manipulation, such as installing electrical wiring, entering a password, flying an aircraft, and so on.
	www.globalguardians.com /masterlists/masterlistqr.php (5485 words)

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