Individual consistency in the accuracy and distribution of confidence judgments
Individual consistency in the accuracy and distribution of confidence judgments
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DOI：
10.1016/j.cognition.2015.10.006
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发表时间：
2016-01-01
期刊：
影响因子：
3.4
通讯作者：
Sigman, Mariano
中科院分区：
文献类型：
--
作者：
Ais, Joaquin;Zylberberg, Ariel;Sigman, Mariano
我们研究的置信度分布的哪些方面-它的形状，它的偏向更高或更低的值，以及它的能力，以区分正确的错误的试验-是谁的特质（个人特异性），何时（跨天的变异性）和什么（任务特异性）。在四个不同知觉任务的不同会话中测量信心，我们发现：（1）在不同日期对同一受试者和同一任务进行测量时，置信度分布几乎相同，构成主观指纹，（2）置信度报告区分正确和不正确回答的能力仅为适度。（3）对于涉及不同感觉模态但具有相似结构的任务，置信度分布非常相似，（4）置信精度与置信分布的均值和宽度无关，（5）置信分布的均值（个人的信心偏差）构成了从信心报告中推断受试者身份的最有效指标，以及（6）在简单的知觉决策中测量的信心偏差与用标准问卷测量的个体的乐观偏差相关。(C)2015 Elsevier B. V.版权所有。
We examine which aspects of the confidence distributions - its shape, its bias toward higher or lower values, and its ability to distinguish correct from erred trials - are idiosyncratic of the who (individual specificity), the when (variability across days) and the what (task specificity). Measuring confidence across different sessions of four different perceptual tasks we show that: (1) Confidence distributions are virtually identical when measured in different days for the same subject and the same task, constituting a subjective fingerprint, (2) The capacity of confidence reports to distinguish correct from incorrect responses is only modestly (but significantly) correlated when compared across tasks, (3) Confidence distributions are very similar for tasks that involve different sensory modalities but have similar structure, (4) Confidence accuracy is independent of the mean and width of the confidence distribution, (5) The mean of the confidence distribution (an individual's confidence bias) constitutes the most efficient indicator to infer a subject's identity from confidence reports and (6) Confidence bias measured in simple perceptual decisions correlates with an individual's optimism bias measured with standard questionnaire. (C) 2015 Elsevier B.V. All rights reserved.