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Surja findings of normal audiological functioning in Misophonia

In a 2023 study, Suraj assessed linear OHC, non-linear OHC, and MOCB efferent functioning in misophonia by comparing TEOAE amplitudes, DPOAE amplitudes, and contralateral suppression magnitudes between misophonic and non-misophonic adults with normal hearing. They found no group differences in absolute OAE amplitudes or in suppression magnitudes for either TEOAEs or DPOAEs at any frequency. From this they concluded that cochlear OHC mechanisms and MOCB efferent functioning are not major contributors to misophonia, and that the pathophysiology likely lies more centrally within the auditory and limbic systems (Suraj et al., 2023).