Application of scalar timing theory to individual trials.
Application of scalar timing theory to individual trials.
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标量计时理论在个体试验中的应用。
DOI：
10.1037//0097-7403.20.2.135
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发表时间：
1994
期刊：
影响因子：
--
通讯作者：
Gibbon,J
中科院分区：
文献类型：
--
作者：
Church,RM;Meck,WH;Gibbon,J
我们的目的是推断的内部时钟，时间记忆和决策过程中涉及的时间泛化行为的个体试验的分析的基础上的特点。三组10只大鼠进行了培训，在15，30，或60秒的强化峰值程序，与几个nonfood试验持续时间。在非食物试验中，平均反应率逐渐增加到最大值附近的时间，有时会发生强化，然后逐渐下降。个别试验的特点是一个时期的高反应率，之前和之后的低反应率。高反应率（开始，停止，中间和蔓延）的时间特征的测量之间的协方差模式支持一个平行的，标量定时模型，其中动物在每次试验中使用的单一样品从记忆的时间强化和单独的反应阈值，以决定何时开始和停止响应。另一种模型，准序列模型（J. Giovanni & RM Church，1992），与所获得的协方差之间的关系或在不同的非食物信号持续时间上观察到的标量属性不一致。
Our purpose was to infer the characteristics of the internal clock, temporal memory, and decision processes involved in temporal generalization behavior on the basis of the analysis of individual trials. Three groups of 10 rats each were trained on a peak procedure with reinforcement at 15, 30, or 60 s, with several nonfood trial durations. On nonfood trials, the mean response rate gradually increased to a maximum near the time that reinforcement sometimes occurred and then gradually decreased. Individual trials were characterized by a period of high response rate, preceded and followed by a low response rate. The covariance pattern among measures of the temporal characteristics of the high response rate (start, stop, middle, and spread) supported a parallel, scalar timing model in which animals used on each trial a single sample from memory of the time of reinforcement and separate response thresholds to decide when to start and stop responding. An alternative model, the quasi-serial model (J. Gibbon & RM Church, 1992), was not consistent with the obtained relationships between covariances or with the scalar property seen across different nonfood signal durations.