EFFECT OF 2 WAYS OF DEVALUING UNCONDITIONED STIMULUS AFTER 1ST-ORDER AND 2ND-ORDER APPETITIVE CONDITIONING
EFFECT OF 2 WAYS OF DEVALUING UNCONDITIONED STIMULUS AFTER 1ST-ORDER AND 2ND-ORDER APPETITIVE CONDITIONING
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DOI：
10.1037/0097-7403.1.4.355
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发表时间：
1975-01-01
期刊：
影响因子：
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通讯作者：
RESCORLA, RA
中科院分区：
文献类型：
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作者：
HOLLAND, PC;RESCORLA, RA
进行了2项实验，每项实验使用32只雄性Sprague-Dawley大鼠。受试者接受基于食物UCS的一阶和二阶条件反射。然后，他们接受了两种操作中的一种，这些操作旨在降低食物的价值，饱足感，或将食物与高速旋转配对。在CS的消退测试期间评估了这些操作的影响。与对照组相比，这两种操作降低了由第一阶CS产生的活性，但不影响由第二阶CS产生的活性。结果被解释为与那些从厌恶的UCSs在暗示参与的UCS表示在第一，但不是在第二阶条件一致。他们还认为，饱食的一个主要影响是降低了UCS的价值。(15参考）（PsycINFO数据库记录（c）2016 APA，保留所有权利）
Conducted 2 experiments with 32 male Sprague-Dawley rats in each. Ss received 1st-and 2nd-order conditioning based upon a food UCS. They then received 1 of 2 manipulations designed to reduce the value of that food, satiation, or pairing of food with high-speed rotation. The effects of these manipulations were assessed during extinction tests of the CSs. Compared with controls, both manipulations reduced the activity produced by the 1st-order CS but did not affect that produced by a 2nd-order CS. Results are interpreted as consistent with those from aversive UCSs in implying the involvement of a UCS representation in 1st-but not in 2nd-order conditioning. They also suggest that a major effect of satiation is to reduce the value of the UCS.(15 ref)(PsycINFO Database Record (c) 2016 APA, all rights reserved)