Latent inhibition refers to retardation of the development of a conditioned response when the conditioned stimulus (CS) is preexposed alone prior to its pairings with an unconditioned stimulus. Experiment 1 demonstrated this effect for rats trained in an appetitive conditioning procedure and confirmed that the effect is found when the target stimulus is presented in compound with another or with a range of other stimuli during preexposure. Previous work has shown that a latent inhibitor does not reliably reduce the level of conditioned responding supported by an excitatory CS when the 2 stimuli are presented in compound (in a summation test). In Experiments 2, 3, and 4 we demonstrate that preexposure in which the target stimulus is presented in compound with a novel event on every trial will render that stimulus effective in a summation test. This outcome is uniquely predicted by the account of latent inhibition proposed by Hall and Rodríguez (2010), which suggests that the latent inhibition effect is a consequence both of a reduction in the associability of the stimulus and of a process of inhibitory associative learning that opposes the initial expectation that a novel event will be followed by some consequence. (PsycINFO Database Record (c) 2020 APA, all rights reserved).

中文翻译：

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预暴露后具有新型刺激的化合物的潜在抑制剂的抑制特性。

潜在抑制是指在条件刺激（CS）与非条件刺激配对之前单独暴露条件刺激（CS）的情况下，条件反应的发展受阻。实验1证明了在经过适应性条件训练的大鼠中的这种效果，并证实当目标刺激在预暴露过程中与其他刺激物或一系列其他刺激物混合存在时，可以发现这种作用。先前的工作表明，当化合物中存在2种刺激时（通过总和测试），潜在抑制剂不会可靠地降低由兴奋性CS支持的条件反应水平。在实验2、3和4中，我们证明了在每次试验中将目标刺激与一种新事件复合呈现的预暴露将使该刺激在求和测试中有效。这一结果是由霍尔和罗德里格斯（Hall andRodríguez，2010）提出的对潜在抑制的解释唯一地预测的，这表明潜在抑制作用是刺激的可结合性降低以及与之相反的抑制性联合学习过程的结果。最初的期望是发生新的事件会产生一些后果。（PsycINFO数据库记录（c）2020 APA，保留所有权利）。