Elliott Blake L, McClure Samuel M, Brewer Gene A
Department of Psychology, Arizona State University, Tempe, AZ 85287, United States of America.
Department of Psychology, Arizona State University, Tempe, AZ 85287, United States of America.
Cognition. 2020 Aug;201:104275. doi: 10.1016/j.cognition.2020.104275. Epub 2020 May 5.
Capacity limits in cognition require that valuable information be prioritized for encoding and retrieval. Individual differences in prioritized value-directed encoding may derive from differences in the general ability to encode memories, or from differences in how strategies are altered for different stimuli to modulate maintenance in working memory. We collected multiple cognitive ability measures to test whether variation in episodic memory, working memory capacity, or both predict differences in value-directed remembering among a large sample of participants (n = 205). Confirmatory factor analysis and structural equation modeling was used to assess the contributions of episodic and working memory to value sensitivity in value-directed remembering tasks. Episodic memory ability, but not working memory capacity, was predictive of value-directed remembering. These results suggest that the ability to prioritize memory derives principally from episodic memory ability overall, so that greater capacity also permits greater flexibility.
认知中的容量限制要求对有价值的信息进行编码和检索时要区分优先级。优先级导向的价值编码中的个体差异可能源于记忆编码一般能力的差异,或者源于针对不同刺激改变策略以调节工作记忆中信息维持方式的差异。我们收集了多种认知能力测量指标,以测试情景记忆、工作记忆容量的变化或两者是否能预测大量参与者(n = 205)中价值导向记忆的差异。使用验证性因素分析和结构方程模型来评估情景记忆和工作记忆对价值导向记忆任务中价值敏感性的贡献。情景记忆能力而非工作记忆容量能够预测价值导向记忆。这些结果表明,区分记忆优先级的能力总体上主要源于情景记忆能力,因此更大的容量也允许更大的灵活性。