Neuroanatomical substrate of noise sensitivity

Marina Kliuchko, Tuomas Puoliväli, Marja Heinonen-Guzejev, Mari Tervaniem, Petri Toiviainen, Mikko Sams, Elvira Brattico

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Abstract

Recent functional studies suggest that noise sensitivity, a trait describing attitudes towards noise and predicting noise annoyance, is associated with altered processing in the central auditory system. In the present work, we examined whether noise sensitivity could be related to the structural anatomy of auditory and limbic brain areas. Anatomical MR brain images of 80 subjects were parcellated with FreeSurfer to measure grey matter volume, cortical thickness, cortical area and folding index of anatomical structures in the temporal lobe and insular cortex. The grey matter volume of amygdala and hippocampus was measured as well. According to our findings, noise sensitivity is associated with the grey matter volume in the selected structures. Among those, we propose and discuss particular areas, previously linked to auditory perceptual, emotional and interoceptive processing, in which larger grey matter volume seems to be related to higher noise sensitivity.
Original languageEnglish
JournalNeuroImage
Volume167
Pages (from-to)309-315
Number of pages7
ISSN1053-8119
DOIs
Publication statusPublished - 15 Feb 2018

Keywords

  • Anatomical MRI
  • Auditory cortex
  • Hippocampus
  • Noise sensitivity
  • Right anterior insula

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    Marina Kliuchko

    09/02/2018

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