Some hearing-impaired patients, especially elderly patients with hearing-impaired, often have audible but unintelligible complaints, so why is it still unintelligible after wearing a hearing aid to compensate?
01,Deterioration of speech resolution in hearing-impaired patients
Some patients have had hearing loss for five years, ten years, or even decades without intervention and compensation. They usually rely on the other party to speak loudly, look at each other’s mouth or use words to communicate, and communicate with the outside world more and more. The less, even some patients do not directly communicate with the outside world.
The process of our communication through language is: collect sound through the outer ear, amplify the sound by the tympanic membrane and ossicular chain, and convert the sound signal into a bioelectric signal by the inner ear, which is then transmitted to the brain for analysis through the auditory nerve.
There is a saying that the more the brain is used, the more intelligent it becomes. If the brain is rarely exposed to verbal signals, the corresponding part of the function will be degraded.So many patients usually listen less and communicate less, so they suddenly wearHearing aid, There may be audible but not understandable phenomenon.This phenomenon is similar to frequently using Pinyin for computer typing, and occasionally the embarrassment of lifting the pen and forgetting the character when writing on the manuscript paper.
The speech discrimination rate of patients with sensorineural hearing impairment is much worse than that of patients with conductive hearing impairment.
Compared with people with normal hearing, patients with sensorineural hearing loss not only have the problem of volume reduction, but also have the problem of frequency distortion (poor frequency resolution).
In other words, when we talk at a normal speaking volume, people with normal hearing have no difficulty in talking, while patients with sensorineural hearing impairment with a hearing threshold of 60 decibels may be inaudible or even unable to hear fully.Although I wear itHearing aid, But it is still impossible for hearing impaired patients to hear every syllable or word clearly, especially in a noisy environment.
This is because, despite the correct compensation of the hearing aid, the patient still has the following problems:
① Poor time resolution ability;
② Poor frequency resolution ability;
③The auditory system has poor noise reduction ability after injury. Things that can be seen like the eyes may not be able to see clearly; for the same reason, you may not be able to hear clearly if you can hear the sound, and even if you can hear the sound clearly, you may not be able to hear it. Understand.
If the auditory center is damaged, the auditory discrimination ability will be worse, which is called centralHearing loss.
Typical central hearing impaired patients can hear sounds, even very small sounds, but they cannot hear clearly or understand.Obviously, if you can’t hear it, you will definitely be unintelligible; but even if you hear it, you may still be unable to understand it due to the deterioration of the inner ear and the hearing center’s analytical ability.
02,Wearing hearing aids requires a break-in period
When a hearing aid is worn for the first time, or when a new hearing aid is replaced, there needs to be a break-in period, just like when a new pair of glasses is just worn, dizziness may occur. http://www.jhhearingaids.com
When we wear hearing aids for the first time, our brain must learn how to re-understand these sounds, especially listening to complex language.
If you don’t understand other people’s speech, and occasionally you can’t hear some lighter conversations, don’t worry. When communicating with others, you need to combine visual cues and observe the person’s facial expressions or posture to help understand the content of the conversation.
When you first wear it, try to start with a quiet environment, one-on-one communication, and start exercising with familiar talkers. When communicating, you need to let the other person slow down and follow the principle of simple to complex, shallow to deep.
03,Hearing aid debugging is also a very important reason
OnHearing aidWhen fitting, it is best to find an experienced and professional fitting technician for fitting and debugging. A good fitting technician may not be able to make a 1000 yuan hearing aid achieve the effect of 10000 yuan, but one has no experience. May make a 10000 yuan hearing aid less than a 1000 yuan hearing aid.
Written by: Wang Shuxu from China
Audit: Made in China
