hearing /hear·ing/ (hēr´ing)
hearing
hearing [hēr´ing]
1. the sense by which sounds are perceived.
2. audition; the capacity to perceive sound.
color hearing a form of chromesthesia in which sounds cause sensations of color.
hear·ing (hîr  ng)n. The sense by which sound is perceived; the capacity to hear. |
hearing
Etymology: AS, hieran
the sense that enables sound to be perceived. It is a major function of the ear. Any reduction in the ability to perceive sounds results in hearing loss, which can range from mild impairment to complete deafness.
hearing [hēr´ing]
the sense by which sounds are perceived, or the capacity to perceive sound; sound waves are converted into nerve impulses for interpretation by the brain. The organ of hearing is the ear, which is divided into the outer, middle, and inner ear, each with its own role. Connecting the middle ear with the nasopharynx is the eustachian tube, through which air enters to equalize the pressure on both sides of the tympanic membrane (eardrum). Called also audition. 
As sound is conducted from the external ear to the inner ear, the sound waves undergo considerable transformation. The tympanic membrane (eardrum), ossicles, and cochlea act as a mechanical transformer to concentrate the sound waves so that they can be picked up by nerve endings in the inner ear and transmitted to the brain.
hearing aid an instrument to amplify sounds for those with hearing loss. There are two types of electronic hearing aids: the air-conduction type, which is worn in the external acoustic meatus, and the bone-conduction type, which is worn in back of the ear over the mastoid process.
Those who have conductive hearing loss can often use any one of the better aids with good results. Patients with otosclerosis will probably need the bone-conduction type of instrument. Those with sensorineural hearing loss (caused by injury to the vestibulocochlear nerve), or a mixed type, may have more trouble selecting a suitable hearing aid and may get less satisfactory results.
Those wearing a hearing aid for the first time should have special training in its proper use. A hearing aid picks up and amplifies all sounds in the vicinity. Often a person whose hearing has declined gradually will have lost the facility to ignore background noises. When one first tries a hearing aid, one's ears will be assaulted by the sounds of passing cars, of doors slamming, of telephones ringing. Training in how to filter out these noises and concentrate on the essential is necessary if the person is to get good results from the hearing aid. For best results, this should be combined with lessons in lipreading.
A cochlear implant can help profoundly deaf persons recognize and interpret various sounds. It does not restore hearing but can improve the quality of life for the deaf.
Those who have conductive hearing loss can often use any one of the better aids with good results. Patients with otosclerosis will probably need the bone-conduction type of instrument. Those with sensorineural hearing loss (caused by injury to the vestibulocochlear nerve), or a mixed type, may have more trouble selecting a suitable hearing aid and may get less satisfactory results.
Those wearing a hearing aid for the first time should have special training in its proper use. A hearing aid picks up and amplifies all sounds in the vicinity. Often a person whose hearing has declined gradually will have lost the facility to ignore background noises. When one first tries a hearing aid, one's ears will be assaulted by the sounds of passing cars, of doors slamming, of telephones ringing. Training in how to filter out these noises and concentrate on the essential is necessary if the person is to get good results from the hearing aid. For best results, this should be combined with lessons in lipreading.
A cochlear implant can help profoundly deaf persons recognize and interpret various sounds. It does not restore hearing but can improve the quality of life for the deaf.
Hearing aids. From Lammon et al., 1995.
hearing,
n the sense by which sound perception occurs; happens after sound waves are converted into impulses of the nerves and translated by the brain.
hearing
the sense by which sounds are perceived, by conversion of sound waves into nerves impulses, which are then interpreted by the brain. Also, the capacity to perceive sound. The organ of hearing is the ear, which is divided into three sections, the outer, middle and inner ear. Each plays a special role in hearing. Connecting the middle ear with the nasopharynx is the pharyngotympanic canal, through which air enters to equalize the pressure on both sides of the tympanic membrane (eardrum).
hearing aid
an instrument to amplify sounds for the hard of hearing. These have been fitted to dogs, but are not normally offered in veterinary practice.
hearing tests
are difficult to administer and interpret in any other than laboratory-trained animals or without specialized electronic equipment such as an impedance audiometer or electroencephalograph with which auditory cortical evoked responses can be measured.
hearing dog
a dog trained to respond to sounds such as a telephone ring or door bell; used to assist hearing impaired humans.
hearing
Audiology A series of events in which sound waves in air are converted to electrical signals that are sent as nerve impulses to the brain where they are interpreted
Patient discussion about hearing.
Q. Who will help me then? I moved out of my parents house at 18 because I couldn't deal with my dads mood swings or his drinking anymore. A friend of mine went over to my parents house one day and saw how he was acting and my mom told her about all this stuff that had been going on. My friend then said she recognized the signs of him having manic depression. I want to know what the signs are and I wanted to know if there was anything I could do to help. It doesn't help that he's making my mom depressed (she really is .I don't know what you'd call it yet though) and she has become addicted to prescription medication for her headaches). I was searching for An information and posted these questions on many forums but i didn't get any valuable response at last i found a solution and I belong to this community called iMedix. Here they have a very supportive and helpful Bipolar support group. This site has helped me a lot and I would like to share it with all of you here.
A. Hello Michael. I see you care for your parents. It may be hard for them to take advice from you. All you can do is try and get them to go see their doctor. Its wise to move away from a situation involving addiction and alcoholism as you have done. You have to go on with your life and hopefully not let the other situation drag you down. Perhaps your parents have friends or relatives that you could contact and ask for help in dealing with them. If the suggestions come from multiple fronts than maybe there is better hope the light will come on for them to seek help. For you, there is a group called Al-Anon. Its not AA. Al-Anon is for people who have been on the receiving end of having to live with an alcoholic or addicted person. They can help you. Alcoholism and drug addiction affect everyone around the one with the problem. You have been living in a tough situation. But you are strong enough to do something about it. Good for you.
Q. Can the fetus hear through the womb? My wife wants to play music to our baby and put earphones on her pregnant stomach so he can hear it. Can he really hear the music?
A. Yes. The fetus can hear sounds from the 18th week of the pregnancy and during the 7th month his ears start responding to the sounds that reach him through the fluids of the womb. He can hear his mother's heart beats and vowel movements. From the third trimester he can even hear the noises from the street and outside world.
Q. I hear about Bipolar disorder and I would like to know about this. Hi, this is SamirAuston. I hear about Bipolar disorder and I would like to know about this. Can any one tell me the best bipolar hospital?
A. Hi Samir again, do you know the film "Patch Adams"? This film is based on a true story. Watch this film and listen exactly to the conversations (particularly from Robin Williams). A hospital has a medical staff. You have to learn, how you check a doctor to recognize which one is for you useful and which one you would prefer to put in the trash. Respect them, but avoid them when they are not honest with you. You ask yourself now perhaps, how you can check a doctor? Here I prepared for the Community a recipe:
http://www.imedix.com/health_community/q103072_How_can_I_know_that_my_doctor_is_good
For the hospital: I would prefer to stay in a hospital on the country-side than in a large city. What about you?
Read more or ask a question about hearinghttp://www.imedix.com/health_community/q103072_How_can_I_know_that_my_doctor_is_good
For the hospital: I would prefer to stay in a hospital on the country-side than in a large city. What about you?
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