Deepened extinction from compound stimulus presentation
Deepened extinction from compound stimulus presentation
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DOI：
10.1037/0097-7403.32.2.135
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发表时间：
2006-04-01
期刊：
影响因子：
--
通讯作者：
Rescorla, RA
中科院分区：
文献类型：
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作者：
Rescorla, RA
用大鼠进行的三项实验和用鸽子进行的两项实验探索了在化合物中呈现2种熄灭的兴奋性刺激的效果。四种学习情况：巴甫洛夫杂志的方法，巴甫洛夫恐惧条件反射，和工具的歧视性工具学习大鼠。以及鸽子的巴甫洛夫符号追踪。所有5个实验都证实了D. Reberg（1972）观察到，即使在个体刺激消失后，将它们呈现在复合物中也会引起实质性的反应。此外，非强化的化合物加深灭绝的一个元素更实质上比额外的介绍，该元素单独。这种化合物暴露减少了自发恢复，减少了恢复，并减缓了随后的修复。主要的决定因素似乎是增强的联想强度，而不是增强的条件反应，发生在非强化化合物。
Three experiments with rats and 2 with pigeons explored the effect of presenting 2 extinguished excitatory stimuli in Compound. Four learning situations were used: Pavlovian magazine approach, Pavlovian fear conditioning, and instrumental discriminative instrumental learning in rats. as well as Pavlovian sign tracking in pigeons. All 5 experiments confirmed D. Reberg's (1972) observation that even after extinction of the individual stimuli, presenting them in Compound evoked substantial responding. Moreover, nonreinforcement of that compound deepened extinction of an element more substantially than did additional presentation of that element alone. Such compound exposure reduced spontaneous recovery, reduced reinstatement, and slowed subsequent reconditioning. The primary determinant seemed to be the enhanced associative strength rather than the enhanced conditioned responding that occurred during the nonreinforced compound.