Multiple peer-reviewed studies confirm the existence of standardized image databases, such as the International Affective Picture System (IAPS), which are widely utilized in psychology research to elicit and measure emotional responses including disgust.
The claim states that there is a standardized database of disgusting (and affective) images used in psychology research. Papers 1, 2, 5, and 7 all explicitly reference the International Affective Picture System (IAPS) as a standardized database of affective/emotional images used for such research purposes, directly supporting the claim. No papers refute it.