Paris Arizona Ash

and 4 more

Background Misophonia is often characterized by excessive negative emotional responses, including anger and anxiety, to “trigger sounds” which are typically day-to-day sounds, such as those generated from people eating. Misophonia (literally ‘hatred of sounds’) has commonly been understood within an auditory processing framework where sounds cause distress due to aberrant processing in the auditory and emotional systems of the brain. However, recent evidence from brain imaging shows involvement of the motor system while listening to trigger sounds suggesting that the perception of an action (e.g., mouth movement) produced by a trigger person, not the sound per se, drives distress in misophonia. Observation or listening to sounds of another’s actions are known to prompt automatic mimicry/imitations. Apart from anecdotal evidence and a few case studies, a relationship between mimicry and misophonia has not been evaluated. Method We addressed this ‘gap’ by collecting data on misophonia symptoms and mimicry behaviour using online questionnaires from 676 participants. Results The analysis shows, (i) the tendency to mimic varies in direct proportion to misophonia severity assessed using a self-reported questionnaire, (ii) compared to other human and environmental sounds, trigger sounds of eating and chewing are more likely to trigger mimicking, and (iii) the act of mimicking provides relief from distress to most people with misophonia. Conclusion Mimicry is widely prevalent in misophonia and is elicited by the most common trigger sounds of eating. The data provides support to the model that misophonia is not a disorder of sound-processing but rather its basis lies in social perception.