Harun Rashed, Jun Elizabeth, Park Heui Hye, Ganupuru Preetham, Goldring Adam B, Hanks Timothy D
Department of Neurology and Center for Neuroscience, University of California, Davis, Davis, CA, United States.
Front Neurosci. 2020 Aug 13;14:826. doi: 10.3389/fnins.2020.00826. eCollection 2020.
Decision making often involves choosing actions based on relevant evidence. This can benefit from focussing evidence evaluation on the timescale of greatest relevance based on the situation. Here, we use an auditory change detection task to determine how people adjust their timescale of evidence evaluation depending on task demands for detecting changes in their environment and assessing their internal confidence in those decisions. We confirm previous results that people adopt shorter timescales of evidence evaluation for detecting changes in contexts with shorter signal durations, while bolstering those results with model-free analyses not previously used and extending the results to the auditory domain. We also extend these results to show that in contexts with shorter signal durations, people also adopt correspondingly shorter timescales of evidence evaluation for assessing confidence in their decision about detecting a change. These results provide important insights into adaptability and flexible control of evidence evaluation for decision making.
决策通常涉及根据相关证据选择行动。这可以通过根据具体情况将证据评估聚焦于最相关的时间尺度来受益。在这里，我们使用一项听觉变化检测任务来确定人们如何根据检测环境变化的任务要求以及评估他们对这些决策的内部信心，来调整他们的证据评估时间尺度。我们证实了之前的结果，即人们在信号持续时间较短的情境中检测变化时会采用更短的证据评估时间尺度，同时用以前未使用的无模型分析来支持这些结果，并将结果扩展到听觉领域。我们还扩展了这些结果，以表明在信号持续时间较短的情境中，人们在评估对检测到变化的决策的信心时也会采用相应更短的证据评估时间尺度。这些结果为决策中证据评估的适应性和灵活控制提供了重要见解。
