By the name misophonia, this is the intolerance that some people feel to some sounds, such as the sound of other people eating. Finally, scientists have already understood why this happens.
Scientists have now found that people who are intolerant of the sound of other people eating it show a distinct brain activity whenever they come into contact with those sounds that irritate them. And this is the first response to the understanding of misophonia, a condition identified in the year 2000, with only two studies published in 13 years: misogynists feel disgust and discomfort when they hear certain sounds, such as the keys, of paper to rip or Others we deal with in everyday life, the responsible is the brain.
Until very recently the researchers believed that this behavior was symptomatic of some type of obsessive-compulsive disorder. But now, new data suggest that this may be a condition with only a neurological explanation: Scans done to people with misophonia have shown an increase in activity in the anterior insular cortex, a part of the brain responsible for determining which things to watch out for Increased. In addition, the scientists noted that there was an increased connection of this area to other brain areas, especially those linked to emotional regulation and memory.
Some brain tests of people with misophonia also showed a difference to people’s brains without this problem: in the ventromedial prefrontal cortex, the fatty sheath that surrounds nerve cells and helps them transmit information to each other is also Higher, which may explain greater connectivity between neurons. These results further suggest that the systems that influence what we pay attention to and respond to emotionally, are altered in people who are bothered by certain sounds.
However, this study published in Current Biology, cannot be conclusive, the sample used in the study is too low, were analyzed only 20 people bothered with certain sounds and 22 people without this problem. In order to obtain more definitive conclusions, it is necessary to carry out the study with a greater number of cases.