执行控制对老年人未来的记忆功能贡献很少:来自更生态有效范式的证据
Simon J Haines1,2, Lucy Busija3, Alexandra Hering4
1School of Behavioural and Health Sciences, Australian Catholic University, Melbourne, Australia.
Memory (Hove, England)
|November 25, 2024
概括
与年龄相关的前性记忆 (PM) 衰退不仅仅由执行控制缺陷来解释. 即使具有更高的生态有效性,执行功能对老年人PM表现的影响最小.
科学领域:
- 认知心理学 认知心理学
- 衰老的神经科学 衰老的神经科学
- 人类记忆研究 人类记忆研究
背景情况:
- 执行控制通常被认为是与年龄相关的潜在记忆 (PM) 衰退的基础.
- 以前的实验室研究提供了不一致的证据支持这种联系.
- 替代模型表明,涉及处理速度的序列调解也可能是相关的.
研究的目的:
- 通过执行功能的并行调解来调查年龄是否影响PM.
- 测试一个串行调解模型,其中处理速度作为初始调解器.
- 通过生态有效的措施来检查年龄,执行功能,处理速度和PM之间的关系.
主要方法:
- 166名老年人完成了四个生态有效的PM任务.
- 参与者还接受了执行功能和认知能力的评估.
- 分析了介导模型,以探索与年龄相关的对PM的影响.
主要成果:
- 年龄预测了三个PM任务的表现较低,特别是基于时间的任务.
- 对执行职能的控制仅略有减少.与年龄相关的PM关联.
- 最具生态价值的PM任务 (MEMO) 没有显示年龄或执行功能影响,但与学习和记忆相关. 处理速度是一个较弱的预测指标.
结论:
- 执行控制在与年龄相关的潜在记忆缺陷中的直接作用可能被夸大了.
- 在生态上有效的PM测量可能会利用与传统实验室任务不同的认知过程.
- 需要进一步的研究,以了解影响老化中的潜在记忆的复杂因素.
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