Summary: A new study contradicts previous findings that suggest misophonia is caused by a supersensitive connection between the auditory cortex and orofacial motor control areas of the brain.
Source: Ohio State University
Researchers for the first time have identified the parts of the brain involved in a less-commonly studied trigger of misophonia, a condition associated with an extreme aversion to certain sounds.
The results, from Ohio State University scientists, suggest that one popular explanation of what causes misophonia may not be correct.
Individuals with misophonia, which afflicts up to 20% of people, feel anger, disgust and a desire to flee when they hear certain sounds.
Chewing and similar noises from the mouth are most often associated with the condition. A previous study published in The Journal of Neuroscience suggested that misophonia is caused by supersensitive connections between the brain’s auditory cortex and orofacial motor control areas—those related to the face and mouth.