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.
Yi (êê ê¿ / Nuosuhxop) Yi is a member of the Loloish branch of the Tibeto-Burman languages spoken by about 4 or 5 million people in Sichuan, Yunnan, Guizhou and Guangxi in southern China. Yi, which is known as å½ in Chinese and Lolo in English, has six main dialects: Northern Yi (êê  - Nuosu), Western Yi (Lalu), Central Yi (Lolopo), Southern Yi (Nisu), Southeastern Yi (Nasu) and Eastern Yi (Nasu).