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.

中文翻译：

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决策和相关置信度判断的证据评估时间尺度适应任务需求

决策通常涉及根据相关证据选择行动。这可以受益于根据情况将证据评估集中在最相关的时间尺度上。在这里，我们使用听觉变化检测任务来确定人们如何根据检测环境变化和评估他们对这些决定的内部信心的任务需求来调整他们的证据评估时间尺度。我们证实了先前的结果，即人们采用较短的证据评估时间尺度来检测信号持续时间较短的上下文中的变化，同时通过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况下，人们还采用相应更短的证据评估时间尺度来评估他们对检测变化的决定的信心。这些结果为决策证据评估的适应性和灵活控制提供了重要的见解。