Killcross A S, Kiernan M J, Dwyer D, Westbrook R F
Department of Psychology, University of York, Heslington.
Q J Exp Psychol B. 1998 Feb;51(1):75-90. doi: 10.1080/713932668.
Three experiments with rats demonstrated that preexposure to an experimental environment retarded the level of conditioned freezing observed on a test in that environment after it had been paired with mild footshock. Furthermore, Experiment 1 demonstrated that this latent inhibition effect could be abolished if preexposed rats were exposed to a second experimental environment following conditioning to the preexposed environment. Experiments 2 and 3 demonstrated that this second environment had to be similar, but not identical, to the preexposed environment, and that the influence of exposure to the second environment on latent inhibition could be abolished by exposure to that environment prior to footshock conditioning. These results are considered in terms of the Dickinson-Burke (1996) theory of retrospective revaluation, and their implications for experiments demonstrating a loss of latent inhibition across a delay are considered.
对大鼠进行的三项实验表明，预先暴露于实验环境会延迟在该环境中与轻度足部电击配对后进行测试时观察到的条件性僵住水平。此外，实验1表明，如果预先暴露的大鼠在对预先暴露的环境进行条件反射后暴露于第二个实验环境，则这种潜伏抑制效应可以消除。实验2和实验3表明，这第二个环境必须与预先暴露的环境相似，但不完全相同，并且在足部电击条件反射之前暴露于该环境可以消除暴露于第二个环境对潜伏抑制的影响。根据迪金森 - 伯克（1996）的回顾性重评估理论对这些结果进行了考量，并探讨了它们对证明延迟期间潜伏抑制丧失的实验的影响。
