“It could mean that participants found the images of male same-sex couples kissing to be equally disgusting as the disgusting images. “It is difficult to specifically state what this means,” study author Karen L. Researchers found that in the majority of the men, a rise in this enzyme was not only detected when looking at same-sex couples kissing, but that it was greater than when looking at the “disgusting” images.
After each slide, a saliva sample was taken from the participant to test for a rise in salivary alpha-amylase levels, an enzyme commonly linked with stress and disgust responses.
