在年轻和老年人中探讨对源记忆决策的主观信心的起源:一个顺序抽样帐户
Kevin P Darby1, Jessica N Gettleman2, Chad S Dodson2
1Department of Psychology, Florida Atlantic University.
Journal of experimental psychology. General
|December 12, 2024
概括
一个新的西格形模型通过将证据映射到主观信心来改善决策预测. 与以前的模型相比,这种方法更好地解释了源记忆中的与年龄相关的差异.
科学领域:
- 认知心理学 认知心理学
- 计算神经科学是一种神经科学.
背景情况:
- 主观的信心对于决策至关重要,但它的计算基础仍然存在争议.
- 现有的模型往往将信心整合到顺序采样中,就像证据相对平衡假设一样.
研究的目的:
- 提出一个使用sigmoid函数的主观信心的新型计算模型.
- 用这个新模型评估源记忆决策中的年龄差异.
- 为了比较西格形模型的性能与相对证据平衡方法.
主要方法:
- 修改了一种顺序采样模型,通过sigmoid函数将决策值距离映射到信心.
- 对现有关于年轻人和老年人的源记忆决策数据应用模型变体.
- 进行比较的模型符合相对证据平衡方法,并考虑了错误记忆效应.
主要成果:
- 与相对证据平衡方法相比,西格形模型显著改善了模型的合适性.
- 该模型成功地捕获了信心偏差和证据敏感性的个体差异.
- 没有证据支持错误记忆是解释源记忆信心年龄差异的必要因素.
结论:
- 西格形模型提供了主观信心与已建立的决策框架的可行整合.
- 这个模型提供了对老龄化如何影响源记忆决策过程的新见解.
- 这些发现挑战了错误记忆的必要性,以解释与年龄相关的源记忆差异.
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