PAVLOVIAN CONDITIONED-STIMULUS EFFECTS UPON INSTRUMENTAL CHOICE BEHAVIOR ARE REINFORCER SPECIFIC
PAVLOVIAN CONDITIONED-STIMULUS EFFECTS UPON INSTRUMENTAL CHOICE BEHAVIOR ARE REINFORCER SPECIFIC
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DOI：
10.1016/0023-9690(83)90004-8
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发表时间：
1983-01-01
影响因子：
1.4
通讯作者：
ROKKE, E
中科院分区：
文献类型：
--
作者：
KRUSE, JM;OVERMIER, JB;ROKKE, E
在一项大鼠控制转移实验中，我们测试了巴甫洛夫条件刺激（Pavlovian CS）效应的特异性。工具行为包括一个有区别的，有条件的2个杠杆选择任务，在这个任务中，质的不同的食欲抑制剂取决于2个正确的选择。在巴甫洛夫阶段，受试者经历了条件反射，以确定1例受试者的CS+或CS-，或另1例受试者的CS+或CS-。最后，在一项测试中，当有机会做出选择反应时，这些CS就会出现。CS+诱发了对杠杆的选择，而CS-只表现出轻微的倾向，诱发了其他选择反应。当CS与原始SD [辨别刺激]复合时，CS+对反应活力几乎没有影响，而CS-降低了与建立CS-时使用的US相同的刺激对SD的反应活力。根据联想中介理论和巴甫洛夫条件性兴奋和抑制的特异性对结果进行了讨论。
In a transfer-of-control experiment with rats, Pavlovian CS [conditioned stimulus] were tested for the specificity of their effects. The instrumental behavior consisted of a discriminative, conditional 2 lever choice task in which qualitatively different appetitive reinforcers were contingent upon the 2 correct choices. In a Pavlovian phase, subjects experienced conditioning to establish either a CS+ or CS- for 1 reinforcer or a CS+ or CS- for the other reinforcer. Finally, in a test, these CS were presented when there was the opportunity to make choice responses. The CS+ evoked choices of the lever which had eventuated in the reinforcer that had served as the Pavlovian US [unconditioned stimulus], while the CS- showed only a slight tendency to evoke the other choice responses. When the CS were compounded with the original SD [discriminative stimulus], the CS+ had little effect upon the vigor of responding while the CS- reduced the vigor of responding to the SD for the reinforcer that was the same as the US used in establishing the CS-. The results are discussed in terms of associative mediational theory and the reinforcer specificity of Pavlovian conditioned excitation and inhibition.