e/Contrast effect

Information
has gloss	eng: A contrast effect is the enhancement or diminishment, relative to normal, of perception, cognition and related performance as a result of immediately previous or simultaneous exposure to a stimulus of lesser or greater value in the same dimension. (Here, normal perception or performance is that which would be obtained in the absence of the comparison stimulus - i.e., one based on all previous experience.)
lexicalization	eng: contrast effect
instance of	e/Cognitive bias