Impaired recognition and regulation of disgust is associated with distinct but partially overlapping patterns of decreased gray matter volume in the ventroanterior insula

Josh D. Woolley*, Eric V. Strobl, Virginia E. Sturm, Tal Shany-Ur, Pardis Poorzand, Scott Grossman, Lauren Nguyen, Janet A. Eckart, Robert W. Levenson, William W. Seeley, Bruce L. Miller, Katherine P. Rankin

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

36 Scopus citations

Abstract

Background The ventroanterior insula is implicated in the experience, expression, and recognition of disgust; however, whether this brain region is required for recognizing disgust or regulating disgusting behaviors remains unknown. Methods We examined the brain correlates of the presence of disgusting behavior and impaired recognition of disgust using voxel-based morphometry in a sample of 305 patients with heterogeneous patterns of neurodegeneration. Permutation-based analyses were used to determine regions of decreased gray matter volume at a significance level p <=.05 corrected for family-wise error across the whole brain and within the insula. Results Patients with behavioral variant frontotemporal dementia and semantic variant primary progressive aphasia were most likely to exhibit disgusting behaviors and were, on average, the most impaired at recognizing disgust in others. Imaging analysis revealed that patients who exhibited disgusting behaviors had significantly less gray matter volume bilaterally in the ventral anterior insula. A region of interest analysis restricted to behavioral variant frontotemporal dementia and semantic variant primary progressive aphasia patients alone confirmed this result. Moreover, impaired recognition of disgust was associated with decreased gray matter volume in the bilateral ventroanterior and ventral middle regions of the insula. There was an area of overlap in the bilateral anterior insula where decreased gray matter volume was associated with both the presence of disgusting behavior and impairments in recognizing disgust. Conclusions These findings suggest that regulating disgusting behaviors and recognizing disgust in others involve two partially overlapping neural systems within the insula. Moreover, the ventral anterior insula is required for both processes.

Original languageAmerican English
Pages (from-to)505-514
Number of pages10
JournalBiological Psychiatry
Volume78
Issue number7
DOIs
StatePublished - 1 Oct 2015
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2015 Society of Biological Psychiatry.

Keywords

  • Disgust
  • Emotion recognition
  • Frontotemporal dementia
  • Insula
  • Neurodegeneration
  • Voxel-based morphometry

Fingerprint

Dive into the research topics of 'Impaired recognition and regulation of disgust is associated with distinct but partially overlapping patterns of decreased gray matter volume in the ventroanterior insula'. Together they form a unique fingerprint.

Cite this