A single mechanism account of duration and rate processing via the pacemaker-accumulator and beat frequency models.
A single mechanism account of duration and rate processing via the pacemaker-accumulator and beat frequency models.
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DOI：
10.1016/j.cobeha.2016.02.026
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发表时间：
2016-04
影响因子：
5
通讯作者：
Levitan CA
中科院分区：
文献类型：
--
作者：
Hartcher-O'Brien J;Brighouse C;Levitan CA
时间是我们环境的一个重要维度，它使我们能够提取有关运动速度、言语、运动动作和精细运动控制的有意义的信息。传统上，时间模型试图量化大脑如何处理事件的持续时间。最常被引用的是起搏器-累加器模型和间隔计时的节拍频率模型，它们解释了持续时间是如何被感知、表示和编码的。在这里，我们将这些模型作为一个强大的工具，同时提取，代表和编码刺激率信息。也就是说，任何可以处理持续时间的模型都具有编码刺激速率所需的所有信息。我们探索不同的处理策略，这将使率从起搏器累加器和间隔定时的拍频模型读取。最后，我们探讨开放的问题，当回答，将揭示潜在的持续时间和速率估计的机制。
Time is an essential dimension of our environment that allows us to extract meaningful information about speed of movement, speech, motor actions and fine motor control. Traditionally, models of time have tried to quantify how the brain might process the duration of an event. The most commonly cited are the pacemaker-accumulator model and the beat frequency model of interval timing, which explain how duration is perceived, represented and encoded. Here we posit such models as providing a powerful tool for simultaneously extracting, representing and encoding stimulus rate information. That is, any model that can process duration has all the information needed to code stimulus rate. We explore different processing strategies which would enable rate to be read off from both the pacemaker-accumulator and beat frequency model of interval timing. Finally we explore open questions that, when answered, will shed light upon potential mechanisms for duration and rate estimation.