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.
The Yi ethnic minority. The Yi ethnic group, with a population of 7,762,286, is mainly distributed over the provinces of Sichuan, Yunnan and Guizhou, and the Guangxi Zhuang Autonomous Region. There are more than one million Yis in Sichuan Province, and most of them live in an area south of the Dadu River and along the Anning River.