出典:Wikipedia
出典:『Wikipedia』 (2011/06/16 23:52 UTC 版)
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.)