Auditory Brainstem Response Patterns in Misophonia: A Comparative Study
Abstract
Background and Aim: Misophonia is a condition characterized by a reduced tolerance to certain sounds or the stimuli linked to those sounds. Our study aims to investigate the auditory brainstem functioning using electrophysiological measures in normal-hearing individuals with and without misophonia.
Methods: Thirty participants aged between 18 and 30 years were recruited. They were divided into two primary groups: fifteen individuals diagnosed with misophonia and fifteen controls. The selection of participants with misophonia was based on the diagnostic criteria by Schröder et al. and the MisoQuest questionnaire, Auditory brainstem response (ABR) was recorded from all the individuals at lower (11.1/s) and higher stimulus rates (90.1/s).
Results: On analysing the data, individuals with misophonia showed significantly shorter absolute latencies of ABR waves III and V at 11.1/s. Also, there was no significant difference in the absolute amplitude of ABR waves at 11.1/s and 90.1/s between the individuals with and without misophonia.
Conclusion: This study indicates that the shorter absolute latencies of ABR waves III and V in individuals in misophonia could be attributed to hyperactivity at the sub-cortical pathway regions compared to the control group.
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Keywords | ||
Misophonia Audiology Auditory brainstem response hyperactivity |
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