Linear Ballistic Accumulator Models of Confidence and Response Time
分享嘉宾： Haomin Chen
单位： University of Melbourne
报告简介
A major target for evidence accumulation models of decision-making has been the development of a joint account of confidence, accuracy, and latency. While successful extensions to confidence have been made, there remains a lack of consensus as to how confidence is generated and there have been few comparisons between existing models. In this work, we developed and compared three different mechanisms for confidence generation in the linear ballistic accumulator framework (Brown & Heathcote, 2008). These take the form of a.) multi-alternative decisions among all of the confidence options as a competitive race, b.) the balance of evidence between the response alternatives (the multiple threshold race; Reynolds et al., in revision), and c.) confidence being inversely proportional to the amount of subjective time that has elapsed in the decision, which is measured as a separate accumulation process. Each theory was tested against two experiments that manipulated the number of confidence options in a decision (Experiment 1) or the amount of time pressure (Experiment 2). All theories cleared the empirical hurdles, but there were also subtle differences between each of the theories in their ability to address the data.
报告时间
北京时间 [GMT+8] 2026年3月18日 (周三) 14:00~15:00
会议信息： ZOOM 会议号：863 0404 9478
报告语言： 英文
主持人： 胡传鹏
参考文献
Chen, H., Heathcote, A., & Osth, A. F. (2026). Linear ballistic accumulator models of confidence and response time. PsyArXiv. https://osf.io/preprints/psyarxiv/jsqx5_v1/
Brown, S. D., & Heathcote, A. (2008). The simplest complete model of choice response time: Linear ballistic accumulation. Cognitive Psychology, 57, 153–178.
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