Durlach P J, Shane D O
McMaster University, Department of Psychology, Hamilton, Ontario, Canada.
Q J Exp Psychol B. 1993 Aug;46(3):289-318. doi: 10.1080/14640749308401090.
Four experiments examined the sensitivity of anticipatory goal-tracking in the rat to stimulus-food contingency. Contingency was manipulated by varying the probability of food delivery in the absence of a food-tray-light or clicker conditional stimulus (CS), while holding constant the probability of food coincident with the CS. CS control of anticipatory food tray investigation was examined after a period of context extinction in all experiments. Acquisition of stimulus control was undermined by the scheduling of intertrial food deliveries (Experiment 1). The rate of intertrial food deliveries influenced subsequent acquisition of CS control when all intertrial food deliveries were omitted (Experiment 2). When intertrial food deliveries were added to the training regimen subsequent to acquisition of CS control, that control was impaired (Experiments 3 and 4).
四项实验研究了大鼠预期目标追踪对刺激-食物关联性的敏感性。通过改变在无食物托盘灯或点击器条件刺激（CS）时食物递送的概率来操纵关联性，同时保持与CS同时出现的食物概率不变。在所有实验中，经过一段时间的情境消退后，检测了CS对预期食物托盘探究的控制。实验性食物递送的安排破坏了刺激控制的习得（实验1）。当所有实验性食物递送都被省略时，实验性食物递送的速率影响了随后CS控制的习得（实验2）。当在习得CS控制后将实验性食物递送添加到训练方案中时，这种控制受到了损害（实验3和4）。
