Disgust Sensitivity

Conservatives are more easily disgusted than liberals
Abstract: http://www.tandfonline.com/doi/abs/10.1080/02699930802110007
Full text: https://www.peezer.net/s/Inbar-Pizarro-Bloom-2009.pdf
Reference: Inbar, Y., Pizarro, D. A., & Bloom, P. (2009). Conservatives are more easily disgusted than liberals. Cognition and emotion, 23(4), 714-725.
"While disgust sensitivity is associated with more conservative attitudes on a range of political issues, this relationship is strongest for purity-related issues—specifically, abortion and gay marriage."

Disgust sensitivity and the neurophysiology of left-right political orientations.
Abstract: https://www.ncbi.nlm.nih.gov/pubmed/22039415
Full text: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3198440/
Reference: Smith, K. B., Oxley, D., Hibbing, M. V., Alford, J. R., & Hibbing, J. R. (2011). Disgust sensitivity and the neurophysiology of left-right political orientations. PloS one, 6(10), e25552.
"In this article, we demonstrate that individuals with marked involuntary physiological responses to disgusting images, such as of a man eating a large mouthful of writhing worms, are more likely to self-identify as conservative and, especially, to oppose gay marriage than are individuals with more muted physiological responses to the same images."

Disgust sensitivity predicts intuitive disapproval of gays.
Abstract: https://www.ncbi.nlm.nih.gov/pubmed/19485621
Full text: https://static1.squarespace.com/static/4ff4905c84aee104c1f4f2c2/t/5084d6d0c4aa1a31c6539c1a/1350883024160/Inbar+Pizarro+Knobe+Bloom+2008.pdf
Inbar, Y., Pizarro, D. A., Knobe, J., & Bloom, P. (2009). Disgust sensitivity predicts intuitive disapproval of gays. Emotion, 9(3), 435.

Disgusting smells cause decreased liking of gay men.
https://www.ncbi.nlm.nih.gov/pubmed/21707161

Disgust and the politics of sex: exposure to a disgusting odorant increases politically conservative views on sex and decreases support for gay marriage.
https://www.ncbi.nlm.nih.gov/pubmed/24798457

Effects of Experienced Disgust on Morally-Relevant Judgments.
https://www.ncbi.nlm.nih.gov/pubmed/27482909