The new bionic ear is expected to "catch" from the noise to the voice

New bionic ears are expected to "catch" from the noise to speak Australian scientists have recently said that they are developing a new type of bionic ears that can be used to simulate the brain to use electrical signals to capture the conversations of others. Hear people talking and enjoy music. A research team led by Associate Professor Tony Borini of La Trobe University in Australia published a paper in the Journal of Neural Engineering of the Royal Society of Physics. When people listen to others, the electrical pulses along the nerve from the ear to the brain Frequency and response time are very important. The brain uses the frequency and discharge time of electrical pulses in nerve cells to encode the sound being heard in order to distinguish the speaker's voice from the background noise. Borini said that by taking into account information about the exact timing of nerve cell firing, the brain can better understand sound. Those who receive this information have greatly enhanced their ability to receive sounds and have a larger volume range, and both of these aspects are very important for patients to understand others' speech. Therefore, copying this information is expected to improve the patient's ability to understand others' speech. Currently, deaf patients are either cochlear implanted or auditory brainstem implanted. However, in both cases, deaf people are required to be able to recognize the sound in the background noise, and even if they undergo implant surgery, they It's hard to enjoy music. Borini said that listening is the ability to discern sounds; speaking, speaking ability is the ability to understand the meaning of others' words. Multi-channel auditory brainstem implantation can produce meaningful hearing for patients who are deaf due to bilateral auditory neuromas, but these patients still cannot tell where the sound originated. Many patients who have undergone transplant surgery also find it difficult to distinguish between dog barks and car horns. The researchers are studying the new bionic ears accordingly, hoping that the bionic ears can restore hearing to deaf patients, so that they can hear others' words in a noisy environment and even enjoy music. The researchers tested the device on experimental mice, hoping to develop a new device for human use. Every year, about 1,000 patients undergo multi-channel auditory brainstem implant surgery; about 200,000 patients undergo cochlear implant surgery each year.

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