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Research Reveals Why Some Find the Sound of Others Eating So Irritating

Tuesday May 25, 2021. 09:21 PM , from Slashdot
Scientists have shed light on why everyday sounds such as chewing, drinking and breathing can be so maddening to some people that it drives them to despair. From a report: Now, brain scans performed by researchers at Newcastle University have revealed that people with misophonia have stronger connectivity between the part of the brain that processes sounds and the part of the so-called premotor cortex which handles mouth and throat muscle movements. When people with misophonia were played a 'trigger sound,' the scans showed that the brain region involved in mouth and throat movement was overactivated compared with a control group of volunteers who did not have the condition.

'What we are suggesting is that in misophonia the trigger sound activates the motor area even though the person is only listening to the sound,' said Dr Sukhbinder Kumar, a neuroscientist at Newcastle University. 'It makes them feel like the sounds are intruding into them.' Kumar and his colleagues believe that trigger sounds activate what is called the brain's mirror neuron system. Mirror neurons are thought to fire when a person performs an action, but also when they see others make particular movements.

Read more of this story at Slashdot.
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