Hippocampal lesions attenuate latent inhibition and the decline of the orienting response in rats.

摘要: Two experiments using rats assessed the effect of dorsal hippocampal lesions on orienting response (OR) elicited by a discrete light and subsequent associability that light. In both subjects received extensive nonreinforced exposure to light, it was found decline in OR evident sham-operated animals severely attenuated lesions. Subsequently paired with condensed milk Experiment 1, conditioning faster lesioned than group. 2 used conditioned inhibition procedure whereby presented compound tone which, when alone, acted as signal for milk. Again this discrimination mastered more rapidly animals. Relevant control groups indicated no differences between learning about novel Thus, influence loss associability...