Matell Matthew S, Kim Jung S, Hartshorne Loryn
Department of Psychology, Villanova University, United States.
Department of Psychology, Villanova University, United States.
Behav Processes. 2014 Jan;101:49-57. doi: 10.1016/j.beproc.2013.08.010. Epub 2013 Sep 4.
Rats were trained in either a 30 s peak-interval procedure, or a 15-45 s variable interval peak procedure with a uniform distribution (Exp 1) or a ramping probability distribution (Exp 2). Rats in all groups showed peak shaped response functions centered around 30 s, with the uniform group having an earlier and broader peak response function and rats in the ramping group having a later peak function as compared to the single duration group. The changes in these mean functions, as well as the statistics from single trial analyses, can be better captured by a model of timing in which memory is represented by a single, average, delay to reinforcement compared to one in which all durations are stored as a distribution, such as the complete memory model of Scalar Expectancy Theory or a simple associative model. This article is part of a Special Issue entitled: Associative and Temporal Learning.
大鼠接受了两种训练程序，一种是30秒的峰值间隔程序，另一种是15 - 45秒的可变间隔峰值程序，后者具有均匀分布（实验1）或递增概率分布（实验2）。所有组的大鼠都表现出以30秒为中心的峰值形状的反应函数，与单一持续时间组相比，均匀分布组的峰值反应函数更早且更宽，递增分布组的大鼠峰值函数更晚。与将所有持续时间作为一种分布来存储的模型（如标量期望理论的完整记忆模型或简单联想模型）相比，通过一种计时模型可以更好地捕捉这些平均函数的变化以及单次试验分析的统计数据，在该计时模型中，记忆由与强化的单一平均延迟来表示。本文是名为：联想与时间学习的特刊的一部分。
