Liljeholm Mimi, Balleine Bernard W
Department of Psychology, University of California, Los Angeles, Los Angeles, CA 90095-1563, USA.
J Exp Psychol Anim Behav Process. 2006 Oct;32(4):481-7. doi: 10.1037/0097-7403.32.4.481.
The effect of conditioning or extinguishing the more salient element of a previously reinforced compound on responding to the less salient element of that compound was assessed in rats. Experiment 1 established that the 2 elements making up an audiovisual compound differed significantly in salience. In Experiment 2A, compound conditioning was followed by either reinforcement or extinction of either the less or more salient element. On test, evidence of retrospective revaluation of the less salient element was found but not of the more salient element. In Experiment 2B, extinction of the more salient element was found to be more effective than its reinforcement in producing retrospective revaluation of the less salient element. The implications of these results are discussed.
在大鼠中评估了对先前强化的复合刺激中较突出成分进行条件化或消退处理，对该复合刺激中较不突出成分反应的影响。实验1证实，构成视听复合刺激的两个成分在显著性上有显著差异。在实验2A中，复合刺激条件化后，对较不突出或较突出的成分进行强化或消退处理。在测试中，发现了较不突出成分的回溯性重评估证据，但未发现较突出成分的此类证据。在实验2B中，发现对较突出成分进行消退处理，在产生较不突出成分的回溯性重评估方面比强化处理更有效。讨论了这些结果的意义。
