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.
Richard Cavendish remembers the events of December 4th, 1959. The man known as Henry Pu Yi led one of the strangest lives of the 20th century. The last of the Manchu emperors, he succeeded to the throne as a boy of two in 1908.