What is hearing deprivation? Why does hearing deprivation occur after unilateral deafness?

What does hearing deprivation mean?

      Hearing deprivation refers to the gradual decline in auditory function due to the reduction of acoustic information stimulation. It is common in patients with bilateral symmetrical hearing loss who have long-term hearing compensation in one ear. The speech recognition rate of the ear without hearing compensation will increase over time There has been a progressive decline over time.The occurrence of this phenomenon is related to the long-term asymmetric sound stimulation of both ears and the unequal amount of information input.When a patient receives a hearing aid in one ear, he can get relatively weak. Therefore, being suppressed by the signal from the hearing ear, the brain seems to give up processing the information from the unaided ear over time, leading to auditory deprivation.

      Therefore, in clinical practice, for patients with bilateral ear damage, if there are no other influencing factors, in order to avoid further deterioration of language ability in the ears without hearing aids, it is recommended to wear both earsHearing aid.

      Current research shows that the degree of hearing loss is related to the occurrence of hearing deprivation effects.The greater the hearing loss, the more prone to hearing deprivation. It is generally believed that the average hearing threshold is less than 35 dB.The incidence of hearing deprivation effects reported by different researchers is also different, ranging from 25% to 39%.

      Since the interval between pre- and post-tests may be months or even years, the exact time when the hearing deprivation effect occurs is unclear.

      Some patients with bilateral symmetrical deafness who only wear hearing aids in one ear have gradually increased their speech recognition rate after hearing aids in the other ear, and can even return to the original level.This phenomenon has attracted the attention of audiologists. Through research, it has been found that some auditory deprivation effects can indeed be restored. The Eriksholm working group calls it auditory acclimation, which mainly refers to the improvement of auditory function due to the increase of acoustic information.Not all hearing deprivation effects can be restored after occurrence, the best measure is to prevent it from happening.

⑥Better auditory memory.

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