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.
Last name: Born. This ancient name is of Anglo-Saxon origin, and is one of the earliest topographical surnames existing today. The derivation is from the Old English pre 7th Century burna, burne, spring, stream, which was originally used as a topographic name for someone who lived beside a stream.