Is it possible to determine the acuteness of hearing just from looking someone in the eye?

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2020-01-13 20:20:09

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Is it possible to determine the acuteness of hearing just from looking someone in the eye?

People with hearing impairments can be recognized by their eyes.

According to the data currently 360 million people suffer from deafness. As a rule, hearing problems arise in early childhood and if the time to detect them before the age of one year, complications . Unfortunately, at the moment, an effective method of detecting early stages of hearing loss, and virtually no problems are identified only when the child becomes an adult. But did you know that find out how well the child hears different sounds, you can just look in his eyes? It seems impossible, but scientists from the American state of Oregon proved it during a rather interesting experiment. The discovery could be the basis for the creation of a new and effective test to check the severity of hearing.

About the opening of scientists from the University of Oregon was told to the educational institution. Still the doctor could check the sharpness of human hearing only the method called audiometry. In this test, the person requires to press the button every time he hears the signal with a frequency from 250 to 8000 Hertz. But this test can pass only relatively healthy people, and small children and adults paralyzed simply not in a position to inform doctors about the moment when I heard .

see also:

How to know if a person has a hearing problem?

Create a method for the determination of hearing acuity, which is suitable for people of all ages and in any physical condition, scientists pushed called barn owls. According to the research participant by name Avinash Singh of the Ball, watching the owls they found that when birds hear any sounds, their pupils dilate significantly. They decided to expand it in the same way the human eyes, when you hear the sound?

To create a new test hearing scientists inspired barn owls

To test this, researchers conducted a small experiment involving 31 volunteers with an average age of 24 years. Study participants were asked to look at a certain point on the screen and to press a specified button in advance at the time when they hear the signal. The sound is delayed, to humans it was not possible to calculate the approximate playback time of the signal and outsmart researchers.

you know,

In the course of the experiment revealed that people's eyes do react to the occurrence of sounds. In particular, changes in the eyes occurred after 250 milliseconds after playback of the signal. According to the researchers, so the doctor can detect hearing problems as effectively as in audiometry. Only when using the new method, patients do not need to press any buttons — the doctor can see the response right in their eyes. If you are playing a sound the pupils of the child or adult does not expand, so he simply can not hear it and he has a hearing problem.

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Currently, the researchers are discussing the effectiveness of their method with psychologists and pediatricians. Soon they are going to do the experiment again with a large number of people, among which also . If all goes well, in the future doctors will be able to identify hearing problems in young children and help them to avoid complications. It would be nice if the method proves effective — it is hoped that the number of deaf people in the future will be significantly reduced.

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