Babies that have just been born are screened for potential problems in hearing through the use of two quick tests that are painless. The first is the automated oto-acoustic emissions test, AOAE, which takes just some minutes and is able to be done when the baby is sleeping. There is placement of a small earpiece in the ears of the baby after which quiet sounds get played through it. This is one form of hearing test Etobicoke residents can consider.
If the ears are functioning properly in the AOAE test, there will be production of reflected sound in the cochlea. The sounds are transmitted to a computer for analysis. In the event that there is no clarity of the results, either the test is done again or a different one is used. The test may fail if the baby is not settled in their sleep or the background has some noise. Another reason for its failure could be temporary ear blockage.
Another test is the automated auditory brainstem test, abbreviated as AABR. In this, there is placement of three sensors that are small on the head and neck of the child. Quiet sounds get played through soft headphones placed on the ears. Sound analysis is done by special computers. These two tests will not work for older babies.
In visual reinforcement audiometry, a baby will be made to sit on the laps as sounds are played to them from a speaker. If the baby turns in the direction of the produced sound, a reward is given in the form of for instance a toy that is lit. In order to know the least sound the baby is able to hear at each pitch, the loudness will be varied. The same test may be performed using earphones. Earphones enable every ear to be tested on its own. It is used in kids between six months and three years old.
For the case of pure tone audiometry, an audiometer is used to generate sounds at varying volumes. The sounds that are played via headphones as the kid is told to show some response whenever the sounds are heard. The response can be for example pressing some button. Through reduction of sound level, the least sounds that can be heard by the child will be worked out.
This technique is only useful for kids over three years old. It is used for screening hearing ability of children before they begin school. In the technique known as play audiometry, the child will be asked to do a simple activity when they hear sounds played via headphones. For instance, they could be told to move some toy whenever they hear sounds.
A speech perception test is very effective too. It assesses the ability of children to recognize words without observing the person make movements of the lips. The words are said directly to the child while ensuring no lip movements are shown or they are played through headphones. The child identifies a word through picking out a matching word or picture from a list.
The method used for testing depends on the age of the child and the recommendation of the physician. Tests can also be carried out on adults. There are different methods for adult testing.
If the ears are functioning properly in the AOAE test, there will be production of reflected sound in the cochlea. The sounds are transmitted to a computer for analysis. In the event that there is no clarity of the results, either the test is done again or a different one is used. The test may fail if the baby is not settled in their sleep or the background has some noise. Another reason for its failure could be temporary ear blockage.
Another test is the automated auditory brainstem test, abbreviated as AABR. In this, there is placement of three sensors that are small on the head and neck of the child. Quiet sounds get played through soft headphones placed on the ears. Sound analysis is done by special computers. These two tests will not work for older babies.
In visual reinforcement audiometry, a baby will be made to sit on the laps as sounds are played to them from a speaker. If the baby turns in the direction of the produced sound, a reward is given in the form of for instance a toy that is lit. In order to know the least sound the baby is able to hear at each pitch, the loudness will be varied. The same test may be performed using earphones. Earphones enable every ear to be tested on its own. It is used in kids between six months and three years old.
For the case of pure tone audiometry, an audiometer is used to generate sounds at varying volumes. The sounds that are played via headphones as the kid is told to show some response whenever the sounds are heard. The response can be for example pressing some button. Through reduction of sound level, the least sounds that can be heard by the child will be worked out.
This technique is only useful for kids over three years old. It is used for screening hearing ability of children before they begin school. In the technique known as play audiometry, the child will be asked to do a simple activity when they hear sounds played via headphones. For instance, they could be told to move some toy whenever they hear sounds.
A speech perception test is very effective too. It assesses the ability of children to recognize words without observing the person make movements of the lips. The words are said directly to the child while ensuring no lip movements are shown or they are played through headphones. The child identifies a word through picking out a matching word or picture from a list.
The method used for testing depends on the age of the child and the recommendation of the physician. Tests can also be carried out on adults. There are different methods for adult testing.
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