a stimulus that is just strong enough to elicit a response. unconditioned stimulus. any stimulus that is capable of eliciting an unconditioned response. See also conditioning. unstructured stimulus. an unclear or ambiguous stimulus, the perception of which is influenced to a greater extent by the characteristics of the perceiver than by those of the stimulus.
Yip, YIP, or yips may refer to: Yip (nickname), a list of people. Ye (surname), a Chinese surname also romanized as Yip (è), including a list of people.
Wu Yifan (Chinese: å´äº¦å¡; pinyin: WÃº YÃ¬fÃ¡n), best known by his stage name, Kris (Korean: í¬ë¦¬ì¤) (born November 6, 1990), is a Canadian-Chinese actor and singer-songwriter currently active in China. He is a former member of EXO and the former leader of its sub-group, EXO-M.