Hopson J W
Department of Psychology: Experimental, Duke University, Box 90086, Durham, NC 27708-0086, USA.
Behav Processes. 1999 Apr;45(1-3):23-31. doi: 10.1016/s0376-6357(99)00007-8.
A hypothesized mechanism underlying gap timing was implemented in the Spectral Timing Model [Grossberg, S., Schmajuk, N., 1989. Neural dynamics of adaptive timing and temporal discrimination during associative learning. Neural Netw. 2, 79-102] , a neural network timing model. The activation of the network nodes was made to decay in the absence of the timed signal, causing the model to shift its peak response time in a fashion similar to that shown in animal subjects. The model was then able to accurately simulate a parametric study of gap timing [Cabeza de Vaca, S., Brown, B., Hemmes, N., 1994. Internal clock and memory processes in aminal timing. J. Exp. Psychol.: Anim. Behav. Process. 20 (2), 184-198]. The addition of a memory decay process appears to produce the correct pattern of results in both Scalar Expectancy Theory models and in the Spectral Timing Model, and the fact that the same process should be effective in two such disparate models argues strongly that process reflects a true aspect of animal cognition.
间隙计时背后的一种假设机制在频谱计时模型[格罗斯伯格，S.，施马约克，N.，1989年。联想学习过程中自适应计时和时间辨别力的神经动力学。《神经网络》2，79 - 102]中得以实现，这是一种神经网络计时模型。在没有定时信号的情况下，使网络节点的激活衰减，从而使该模型以类似于动物实验对象所显示的方式移动其峰值响应时间。然后，该模型能够准确模拟间隙计时的参数研究[卡韦萨·德·巴卡，S.，布朗，B.，赫姆斯，N.，1994年。动物计时中的内部时钟和记忆过程。《实验心理学杂志：动物行为过程》20 (2)，184 - 198]。在标量期望理论模型和频谱计时模型中，添加记忆衰减过程似乎都能产生正确的结果模式，并且同一过程在两个如此不同的模型中都有效这一事实有力地表明，该过程反映了动物认知的一个真实方面。
