主动控制下降,而反应性控制在成年人一生中保持
Merve Ileri-Tayar1, Julie M Bugg1, Thomas Dudey1
1Department of Psychological and Brain Sciences, Washington University in St. Louis.
认知控制机制在成年人一生中发生变化. 随着年龄的增长, 预测分心的积极控制会减弱, 而适应意想不到的需求的反应性控制则保持稳定.
科学领域:
- 认知心理学
- 神经科学
- 发展心理学
背景情况:
- 双重控制机制 (DMC) 框架提出了不同的主动和反应性控制策略.
- 了解这些控制机制在成年人一生中的变化对于认知衰老研究至关重要.
研究的目的:
- 通过Stroop任务调查前性和反应性控制中的与年龄相关的差异.
- 测试年轻人,中年人和老年人的双重控制机制的预测.
主要方法:
- 使用一种新的色词声响应范式,具有不同的主动,基线和反应条件.
- 操纵整个列表和特定项目的比例一致性以隔离控制过程.
- 在大样本中分析了主动和反应性控制的行为标志物 (N=327).
主要成果:
- 年轻的成年人表现出强大的前性控制,而老年人则没有前性控制效应.
- 与年轻成年人相比,中年成年人表现出较低的主动控制.
- 反应对照指数没有显示与年龄相关的变化,支持主动对照的选择性下降.
结论:
- 这些发现证实了与寿命相关的主动控制能力的下降.
- 反应性控制机制似乎在成年人一生中保持不变.
- 结果强烈支持控制框架的双重机制及其与衰老中神经认知变化的联系.
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