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Misophonia is a condition in which subjects who otherwise normally process acoustic inputs, suffer an augmented aggressive reaction to particular sound stimuli. Trigger sounds for these patients normally relate to human produced oral sounds like lip smacking, chewing or panting. The emotions accompanying these triggers include rage, disgust, panic and anxiety. Auditory evoked event related potentials (ERP’s) were recorded during a non-attentive oddball sequence task. Auditory stimuli consisted of frequent standard tones (587.3 Hz, p= .89) and infrequent deviant tones (261.6Hz, p= .11) delivered in a randomized sequence to both ears using headphones. We focused on Mismatch Negativity (MMN) ratings and compared the features between controls and misophonic patients. MMN peak latency was not relevantly different in patients than in controls. MMN peak amplitudes, however, presented significant differences evidencing a possible clinical biomarker for misophonia in the brains automatic discrimination process. The results presented in the paper evidence significantly different MMN for misophonic patients v/s controls. Location: Science Park 904, SP A1.08

Detail Summary
Date 3 January 2014
Time 10:00 - 11:00