Hate the Sound of Breathing and Chewing? You May Have a Brain Disorder

By Ana Verayo, | February 06, 2017

Sounds associated while eating like chewing can trigger a brain disorder in some people.

Sounds associated while eating like chewing can trigger a brain disorder in some people.

Scientists suggest that those of you who dislike certain sounds or even get mad at the sound of others breathing or chewing, could have a brain disorder. This also means that certain sounds that can make you snap is a telltale sign of a condition known as misophonia.

Many people suffer from this condition which is apparently caused by changes in the brain's structure, specifically the frontal lobe, where these "trigger" sounds are processed. This immediately results in an intense feeling of irritation and hate.

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According to Sukhbinder Kumar of Newcastle University, this new study marks the first time that we have linked a difference in brain structure to misophonia.

Kumar explains, those patients with misophonia also possess very similar clinical features however, this syndrome is not yet widely known in current clinical diagnosis. In this new study, the team demonstrates the critical changes in the brain as important evidence to convince the medical communtiy about a real disorder.

 

By studying brain scans of patients who claim that they are suffering from misophonia, researchers monitored changes when they are exposed to neutral, unpleasant and trigger sounds. For example, neutral sounds are pouring rain or a crowded coffee shop. Unpleasant sounds are baby cries or a screaming person. However, trigger sounds are sounds involving eating or just breathing.

Scientists were able to identify a difference in the brain's frontal lobe between the cerebral hemispheres of those who have this condition. This region is embedded in gray matter, inside a fold located by the side of the brain that is linked with emotional processing. Researchers add that those who are suffering from misophonia also show an increase in heart rate and sweating upon playing some trigger sounds.

Kumar adds, we hope that with this new findings, we can finally identify the brain signature of these trigger sounds that can also be used for treatment. For example, this neuro feedback can help patients self-regulate their reactions when they see the unusual kind of brain activity they produce.

This new study is published in the journal, Current Biology.

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