diminished n1 auditory evoked potentials to oddball stimuli in misophonia patients

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ID: 142786
2014
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Abstract
Misophonia (hatred of sound) is a newly defined psychiatric condition in which ordinary human sounds, such as breathing and eating, trigger impulsive aggression. In the current study we investigated if a dysfunction in the brain’s early auditory processing system could be present in misophonia.
We screened 20 patients with misophonia with the diagnostic criteria for misophonia, and 14 matched healthy controls without misophonia, and investigated any potential deficits in auditory processing of misophonia patients using auditory event-related potentials (ERPs) during an oddball task.
Subjects watched a neutral silent movie while being presented a regular frequency of beep sounds in which oddball tones of 250 Hz and 4000 Hz were randomly embedded in a stream of repeated 1000 Hz standard tones. We examined the P1, N1 and P2 components locked to the onset of the tones.
For misophonia patients, the N1 peak evoked by the oddball tones had a smaller mean peak amplitude than the control group. However, no significant differences were found in P1 and P2 components evoked by the oddball tones. There were no significant differences between the misophonia patients and their controls in any of the ERP components to the standard tones.
The diminished N1 component to oddball tones in misophonia patients suggests an underlying neurobiological deficit in misophonia patients. This reduction might reflect a basic impairment in auditory processing in misophonia patients.
Reference Key
eschrder2014frontiersdiminished Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Arjan eSchröder;Rosanne eVan Diepen;Ali eMazaheri;Diamantis ePetropoulos-Petalas;Vicente eSoto de Amesti;Nienke eVulink;Damiaan eDenys;Damiaan eDenys
Journal lasers in manufacturing and materials processing
Year 2014
DOI
10.3389/fnbeh.2014.00123
URL
http://journal.frontiersin.org/Journal/10.3389/fnbeh.2014.00123/full
Keywords
aggression impulsivity biological markers sound mismatch negativity (mmn) neuropsychiatry biological psychiatry

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