对老年人的认知训练干预措施的影响:一项随机对照试验
Karlene Ball1, Daniel B Berch, Karin F Helmers
1Department of Psychology, University of Alabama at Birmingham, 35294-2100, USA. kball@uab.edu
JAMA
|November 13, 2002
概括
认知训练干预有效地改善了老年人的记忆,推理和处理速度. 然而,在两年内,这些认知增强并没有转化为日常功能显著改善.
科学领域:
- 老年学和认知神经科学
- 临床试验和干预研究研究.
背景情况:
- 认知功能对于老年人独立生活至关重要.
- 有限的研究存在于认知增强对日常活动的影响.
- 保持认知能力对于保持老龄化人口的自主性至关重要.
研究的目的:
- 评估三个不同的认知训练计划的有效性.
- 为了确定认知能力的改善是否转化为老年人的日常功能.
- 在两年时间内评估认知干预的长期影响.
主要方法:
- 一个随机的,受控的,单盲试验,涉及2832名65-94岁的成年人.
- 参与者被分配到记忆,推理,处理速度培训或对照组.
- 干预措施包括初始培训和可选的增强器课程; 认知功能和日常功能在两年内被评估.
主要成果:
- 所有的认知训练干预都显著改善了目标认知能力,效果持续了两年.
- 助推训练进一步增强了速度和推理的增长,在两年后续中保持了改进.
- 在两年后,没有观察到与训练相关的对日常运作的显著影响.
结论:
- 认知培训干预措施在提高老年人的特定认知技能方面是有效和持久的.
- 认知能力改善的程度是相当大的,相当于预防了7-14年的与年龄有关的衰退.
- 可能需要更长的随访时间来检测训练对日常功能的影响,因为整体功能下降最小.
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