FOOD ANTICIPATION AND LEVER-DIRECTED ACTIVITIES IN RATS
FOOD ANTICIPATION AND LEVER-DIRECTED ACTIVITIES IN RATS
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DOI：
10.1016/0023-9690(84)90014-6
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发表时间：
1984-01-01
影响因子：
1.4
通讯作者：
CLELAND, GG
中科院分区：
文献类型：
--
作者：
DAVEY, GCL;CLELAND, GG
三个实验阐述了一些条件下，大鼠将接触和操纵定期提出的伸缩杆。实验1表明，如果大鼠先前在实验室中有食物递送的经验，则促进了与杠杆的初始操纵性口腔和手动接触;在连续呈现时持续收缩杠杆是食物是否继续在实验环境中呈现的函数;食物饱足显著降低了大鼠接触杠杆的倾向，即使先前在食物剥夺的条件下已经建立了食物的期望。实验2表明，接近和接触杠杆的倾向部分是当地时刻到时刻的条件概率的函数。实验3发现，接触杠杆的概率是更高的听觉CS（条件刺激）信号的高速率的食物输送比在刺激信号没有食物。显然，食欲CS的食物信号方面和CS产生信号导向行为的能力是实验上可分离的性质。
Three experiments are described which elaborate some of the conditions under which rats will contact and manipulate a periodically presented retractable lever. Experiment 1 demonstrated that initial manipulative oral and manual contact with the lever was facilitated if the rat had previous experience of food delivery in the experimental chamber; persistence in contracting the lever on successive presentations was a function of whether food continued to be presented in the experimental environment; and food satiation significantly reduced the tendency of the rat to contact the lever even though an expectancy of food had previously been established under conditions of food deprivation. Experiment 2 suggested that the tendency to approach and contact the lever was in part a function of the local moment-to-moment conditional probability of food delivery. Experiment 3 found that the probability of contacting the lever was higher during presentation of an auditory CS [conditioned stimulus] signaling a high rate of food delivery than during stimuli signaling no food at all. Evidently, the food-signaling aspects of an appetitive CS and the ability of CS to generate signal-directed behaviors are experimentally separable properties.