干扰和注意力切换在衰老中的干扰和注意力切换
Chris A Schumann1, Nathan J Evans1, Gail A Robinson1
1Neuropsychology Research Unit, Faculty of Health and Behavioural Sciences, School of Psychology, University of Queensland.
Neuropsychology
|June 29, 2023
概括
年龄较大的成年人.
科学领域:
- 认知心理学 认知心理学
- 神经科学是一个神经科学.
- 老年学是指老年学的学科.
背景情况:
- 老年人通常在认知任务上表现得更慢.
- 扩散决策建模 (DDM) 通过处理时间,注意力和感觉运动因素来解释减速.
- 老年人中的干扰处理在DDM中并不完全被理解.
研究的目的:
- 为了研究使用DDM的干扰处理和衰老.
- 为了比较单任务和双任务的性能,以了解注意力控制.
- 探索与年龄相关的减缓背后的神经认知机制.
主要方法:
- 使用选择响应时间任务,并没有干扰.
- 将EZ-扩散模型应用于117名年轻人和老年人的数据.
- 在单一和双重任务条件下分析了注意力切换.
主要成果:
- 较长的非决策时间是老年人反应时间 (RTs) 减慢的主要原因.
- 这种效应在双重任务注意力切换过程中更为明显.
- 在注意力转换之前的干扰处理显著影响了老年人的RTs.
结论:
- 干扰处理,而不是小心减少错误,在老年人中驱动较慢的RTs.
- 这些发现支持神经认知和抑制缺陷解释与年龄相关的减缓.
- 阻断干扰的困难及其对认知过程的影响需要进一步研究DDM在衰老中的作用.
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