The scientific mechanism of "sound analgesic" of the University of Science and Technology of China discovered the scientific mechanism of "sound analgesic"

Professor Zhang Zhi of the University of Science and Technology of China cooperated with many scientific research teams at home and abroad. It proves that the sound of about 5 cents higher than the environmental sound can effectively relieve the pain of mice, and further reveal that the low -intensity sound can inhibit the brain's "pain zone" in the brain. Activity, and then relieve the scientific mechanism of pain. The internationally renowned academic journal "Science" recently released the results.

As early as 1960, some researchers found that playing music can regulate patient emotions during dental surgery, and pointed out that even the noise of surgical electric diamonds can also produce analgesic effects. But for more than half a century, the scientific mechanism of "sound can reduce pain" is unclear.

Recently, the team of Professor Zhang Zhi of the Chinese University of Science and Technology, Professor Liu Yuanyuan of the National Institute of Health, and the team of Associate Professor Tao Wenjuan of Anhui Medical University conducted research. With new discoveries.

They play three different types of sounds for mice who are inflamed to claws, which are soothing music, uncoordinated sounds and white noise. It was found that when these three sounds were played at low intensity, they could effectively relieve the pain of mice, and the effect after raising the volume was not obvious.

"When we experimented, when the sound intensity was higher than the environmental sound, the analgesic effect was the most obvious, the effect of the 10 -point decibel was weakened, and the sound was increased, and the effect was basically disappeared." Associate Researcher Zhou Wenjie said.

Low -intensity sound to relieve the mechanism of mouse pain. (Photo confession of the research group of the University of Science and Technology)

The researchers used the virus as a neurotic tracer, and the leather hearing layer output was tracked throughout the brain. It was found that a large number of neurons in the hearing cortex were projected into the body sensation, and the low -intensity sound could inhibit this projection.

"Simply put, low -intensity sounds have suppressed the projection of the hearing cortex neurons, which further inhibit the activity of the" pain "area responsible for the" pain "area in the brain, and reduce the pain of the mice." The mechanism of the human brain is much more complicated, and the relief of the sound on human pain is worth further research.

(Source: Xinhua News Agency)

【Edit: Yao Hao】

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