Portavella Manuel, Salas Cosme, Vargas Juan P, Papini Mauricio R
Laboratorio de Psicobiología, Departamento de Psicología Experimental, Facultad de Psicología, Universidad de Sevilla, c/ Camilo José Cela, s/n 41018, Sevilla, Spain.
Physiol Behav. 2003 Oct;80(1):49-56. doi: 10.1016/s0031-9384(03)00208-7.
Goldfish (Carassius auratus) received escape-avoidance training in a shuttle-response situation at a rate of a single trial per day. Widely spaced training evaluates the ability of a discriminative stimulus to control an avoidance response in the absence of stimulus carry-over effects from prior recent trials. In Experiment 1, master goldfish exhibited significantly faster avoidance learning than yoked controls. The results suggest that the shuttle response was instrumentally acquired. Experiment 2 demonstrated a significant deficit in the acquisition of avoidance behavior following ablation of the telencephalon. The implications of spaced-trial, telencephalon-dependent avoidance learning, as demonstrated in these experiments for the first time, are discussed in the context of comparative research on instrumental learning in goldfish. These results provide further support for the hypothesis that the fish telencephalon contains an emotional system that is critical for fear conditioning.
金鱼（Carassius auratus）在穿梭反应情境中接受逃避-回避训练，每天进行一次单次试验。间隔较长时间的训练评估辨别性刺激在不存在近期先前试验的刺激遗留效应的情况下控制回避反应的能力。在实验1中，主导金鱼表现出比配对对照显著更快的回避学习。结果表明穿梭反应是通过工具性习得的。实验2表明端脑切除后回避行为的习得存在显著缺陷。首次在这些实验中证明的间隔试验、依赖端脑的回避学习的意义，在金鱼工具性学习的比较研究背景下进行了讨论。这些结果为鱼类端脑包含对恐惧条件作用至关重要的情绪系统这一假设提供了进一步支持。
