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.
Yitzhak Avni (Hebrew: ××¦××§ ××§× ××× × ââ; born 27 April 1967), best known as Aki Avni, is an Israeli actor, entertainer and television host. He appeared in the movie Free Zone with Natalie Portman. He additionally played the character Mohsen in the second season of the television series 24. Biography. Avni was born and raised in Rehovot.