在MIDUS中,在成年人一生中表征认知分散及其相关性
Laura M Klepacz1, Eric S Cerino2, Jeremy M Hamm1
1Department of Psychology, North Dakota State University, Fargo, North Dakota, USA.
概括
认知变化 (分散) 的增加可能并不总是信号下降,特别是在非临床成年人. 这种认知分散可以表明更健康的个人资料,特别是那些患有障碍风险较高的人.
科学领域:
- 认知神经科学 认知神经科学
- 老年学是一门学科.
- 心理学 心理学 心理学
背景情况:
- 认知任务的个体内变化,称为分散,与临床组的认知衰退有关.
- 关于在年轻,非临床和国家人口中分散的理解有限.
- 澄清分散的作用对于其作为认知健康指标的使用至关重要.
研究的目的:
- 在一个多样化,非临床的成年人寿命样本中描述分散及其相关物.
- 研究随着时间的推移分散的变化如何与认知衰老轨迹有关.
- 确定影响分散和认知衰老之间的关系的人口和社会经济因素.
主要方法:
- 利用了来自美国中年研究 (MIDUS) 的数据,其中有2,229名参与者 (年龄33-83岁).
- 在两个时间点分析了分散和性能之间的横截面关联.
- 采用自回归和调节模型来研究纵向变化和影响因素.
主要成果:
- 更高的分散与更高的平均认知表现相关.
- 扩散的增加与9年平均性能下降的程度较小有关.
- 这种关联在老年人,女性和受教育程度和收入较低的个人中更为明显.
结论:
- 在规范性成年人样本中,增加认知分散可能不会普遍有害.
- 分散可能反映出更健康的认知特征,特别是在高危人群中.
- 散的解释作为认知健康的指标需要考虑个体差异和背景.
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