Miguez Gonzalo, Soares Julia S, Miller Ralph R
State University of New York, Binghamton, NY, USA.
Learn Behav. 2015 Sep;43(3):228-42. doi: 10.3758/s13420-015-0175-0.
In two lick suppression experiments with rats, we assessed interference with behavior indicative of conditioned inhibition by a latent inhibition treatment as a function of test context. We asked what effect the test context has, given identical latent inhibition treatments in Phase 1 and identical conditioned inhibition trainings in Phase 2. In Experiment 1, an AAA versus AAB context-shift design determined that the latent inhibition treatment in Phase 1 attenuated behavior indicative of the conditioned inhibition training administered in Phase 2, regardless of the test context, which could reflect a failure to either acquire or express conditioned inhibition. In Experiment 2, an ABA versus ABB design showed that test performance in Contexts A and B reflected the treatments that had been administered in those contexts (i.e., conditioned inhibition was observed in Context B but not A), which could reflect either the context specificity of either latent inhibition or conditioned inhibition. In either case, latent inhibition of conditioned inhibition training in at least some situations was seen to reflect an expression deficit rather than an acquisition deficit. These data, in conjunction with prior reports, suggest that latent inhibition is relatively specific to the context in which it was administered, whereas conditioned inhibition is specific to its training context only when it is the second-learned relationship concerning the target cue. These experiments are part of a larger effort to delineate control by the test context of two-phase associative interference, as a function of the nature of target training and the nature of interference training.
在两项针对大鼠的舔舐抑制实验中，我们评估了作为测试环境函数的潜在抑制处理对指示条件性抑制行为的干扰。我们探讨了在第1阶段给予相同的潜在抑制处理且在第2阶段给予相同的条件性抑制训练的情况下，测试环境会产生何种影响。在实验1中，采用AAA与AAB环境转换设计确定，无论测试环境如何，第1阶段的潜在抑制处理都会减弱第2阶段给予的条件性抑制训练所指示的行为，这可能反映了未能习得或表现出条件性抑制。在实验2中，ABA与ABB设计表明，在A和B环境中的测试表现反映了在这些环境中所给予的处理（即，在环境B中观察到了条件性抑制，而在环境A中未观察到），这可能反映了潜在抑制或条件性抑制的环境特异性。在任何一种情况下，可以看到在至少某些情况下对条件性抑制训练的潜在抑制反映的是表现缺陷而非习得缺陷。这些数据与先前的报告一起表明，潜在抑制相对特定于其施加的环境，而条件性抑制仅在它是关于目标线索的第二个学习到的关系时才特定于其训练环境。这些实验是一项更大努力的一部分，该努力旨在描绘作为目标训练性质和干扰训练性质函数的测试环境对两阶段联想干扰的控制。
