Temporal search as a function of the variability of interfood intervals
Temporal search as a function of the variability of interfood intervals
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DOI：
10.1037/0097-7403.24.3.291
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发表时间：
1998-07-01
期刊：
影响因子：
--
通讯作者：
Crystal, JD
中科院分区：
文献类型：
--
作者：
Church, RM;Lacourse, DM;Crystal, JD
我们试图确定是否定时理论的发展，主要是为了解释性能在固定的时间间隔强化时间表也适用于可变的时间间隔。各组大鼠在杠杆箱中进行训练，以30-，45-或60-s的间隔或30-至60-s的均匀分布进行峰值程序（实验1）;动物之间和动物内60 s固定和1- 121 s均匀分布（实验2）;以及其中食物和下一个可用食物之间的间隔从固定的60秒逐渐改变到0和120秒之间的均匀分布的过程（实验3）。在统一的间隔时间表大鼠在特定的时间，因为食物，作为测量的食物-食物间隔的分布，postreinhibition暂停的分布，和平均响应率作为时间的函数，因为食物杠杆反应。这种性能的定性特征描述的多振荡器连接主义理论的时间。
We attempted to determine whether timing theories developed primarily to explain performance in fixed-interval reinforcement schedules are also applicable to variable intervals. Groups of rats were trained in lever boxes on peak procedures with a 30-, 45-, or 60-s interval, or a 30- to 60-s uniform distribution (Experiment 1); a 60-s fixed and 1- to 121-s uniform distribution between and within animals (Experiment 2); and a procedure in which the interval between food and next available food gradually changed from a fixed 60 s to a uniform distribution between 0 and 120 s (Experiment 3). In uniform interval schedules rats made lever responses at particular times since food, as measured by the distribution of food-food intervals, the distribution of postreinforcement pauses, and the mean response rate as a function of time since food. Qualitative features of this performance are described by a multiple-oscillator connectionist theory of timing.