Department of Psychology, University of California-Los Angeles.
Behav Neurosci. 2021 Apr;135(2):154-164. doi: 10.1037/bne0000430.
One of the most important factors in decision-making is estimating the value of available options. Subregions of the prefrontal cortex, including the orbitofrontal cortex (OFC), have been deemed essential for this process. Value computations require a complex integration across numerous dimensions, including, reward magnitude, effort, internal state, and time. The importance of the temporal dimension is well illustrated by temporal discounting tasks, in which subjects select between smaller-sooner versus larger-later rewards. The specific role of OFC in telling time and integrating temporal information into decision-making remains unclear. Based on the current literature, in this review we reevaluate current theories of OFC function, accounting for the influence of time. Incorporating temporal information into value estimation and decision-making requires distinct, yet interrelated, forms of temporal information including the ability to tell time, represent time, create temporal expectations, and the ability to use this information for optimal decision-making in a wide range of tasks, including temporal discounting and wagering. We use the term "temporal cognition" to refer to the integrated use of these different aspects of temporal information. We suggest that the OFC may be a critical site for the integration of reward magnitude and delay, and thus important for temporal cognition. (PsycInfo Database Record (c) 2021 APA, all rights reserved).
在决策中,最重要的因素之一是估计可用选项的价值。前额皮质的亚区,包括眶额皮质(OFC),被认为是这个过程的关键。价值计算需要跨多个维度进行复杂的整合,包括奖励的大小、努力程度、内部状态和时间。时间维度的重要性通过时间贴现任务得到了很好的说明,在这个任务中,被试需要在较小的即时奖励和较大的延迟奖励之间做出选择。OFC 在计时和将时间信息整合到决策中的具体作用仍不清楚。基于当前的文献,在这篇综述中,我们重新评估了当前关于 OFC 功能的理论,考虑了时间的影响。将时间信息纳入价值估计和决策需要不同但相互关联的形式的时间信息,包括计时、表示时间、产生时间预期,以及在广泛的任务中使用这些信息进行最佳决策的能力,包括时间贴现和打赌。我们使用“时间认知”一词来指代这些不同方面的时间信息的综合使用。我们认为,OFC 可能是整合奖励大小和延迟的关键部位,因此对时间认知很重要。(PsycInfo 数据库记录(c)2021 APA,保留所有权利)。