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Study by Marina Kliuchko, Peter Vuust, Elvira Brattico et al shows that the neural mechanisms in the auditory cortex is making some individuals more susceptible and irritable from noisy sounds.
19.12.2016 |
The article: "A window into the brain mechanisms associated with noise sensitivity" was just published in Scientific Reports.
You can see the publication here:
http://www.nature.com/articles/srep39236
Abstract:
Noise sensitive individuals are more likely to experience negative emotions from unwanted sounds and they show greater susceptibility to adverse effects of noise on health. Noise sensitivity does not originate from dysfunctions of the peripheral auditory system, and it is thus far unknown whether and how it relates to abnormalities of auditory processing in the central nervous system. We conducted a combined electroencephalography and magnetoencephalography (M/EEG) study to measure neural sound feature processing in the central auditory system in relation to the individual noise sensitivity. Our results show that high noise sensitivity is associated with altered sound feature encoding and attenuated discrimination of sound noisiness in the auditory cortex. This finding makes a step towards objective measures of noise sensitivity instead of self-evaluation questionnaires and the development of strategies to prevent negative effects of noise on the susceptible population.