老龄化会降低视觉工作记忆的精度.
Shahrzad M Esfahan1,2, Mohammad-Hossein H K Nili3, Javad Hatami1,2
1Institute for Cognitive Science Studies (ICSS), Tehran, Iran.
概括
像工作记忆 (WM) 这样的认知能力随着年龄的增长而下降. 这项研究发现,在老年人中,WM精度下降,错误增加,影响整体性能.
科学领域:
- 认知神经科学 认知神经科学
- 人类衰老研究研究
背景情况:
- 众所周知,认知功能,包括工作记忆 (WM),随着年龄的增长而下降.
- 了解WM与年龄相关的变化对于开发支持健康认知衰老的干预措施至关重要.
研究的目的:
- 调查年龄对工作记忆 (WM) 性能的影响.
- 确定导致与年龄相关的肌肉衰减的特定错误来源.
主要方法:
- 一项涉及面部刺激的视觉工作记忆任务给了102名年龄在18-71岁的健康成年人.
- 在延迟匹配样本复制范式中,采用分级尺度收集了答案.
主要成果:
- 参与者的错误随着年龄的增长而显著增加.
- 观察到与年龄相关的误差分布标准偏差显著增加.
- 没有发现与年龄相关的显著变化,对反应的统一概率.
结论:
- 工作记忆 (WM) 的性能在整个使用寿命中明显下降.
- 工作记忆 (WM) 的精度随着年龄的增长而单调地下降.
- 年龄似乎不会影响WM任务中随机猜测的概率.
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