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.
Try plugging your surname into the Ancestry Last Names Meanings and Origins widget. Type in the surname âDuffield,â and youâll see itâs English, a âhabitational name from places in Derbyshire and East Yorkshire, so named from Old English Dufe âdoveâ + feld âopen country.ââ.