A supernormal stimulus or superstimulus is an exaggerated version of a stimulus to which there is an existing response tendency, or any stimulus that...

the wearer's own skin. The material may be regarded as providing a superstimulus that is more intense than the normal response associated with real skin...

butterflies would try to mate with in preference to real females. The superstimulus, by its exaggerations, clearly delineated what characteristics were...