健康衰老的新证据:对口语流性的积极队列效应
Fernando Massa1, Alejandra Marroig1, Joe Rodgers2
1Instituto de Estadística, Universidad de la República, Montevideo, Uruguay.
Innovation in aging
|October 17, 2024
概括
晚出生的个体随着年龄的增长表现出语言流性下降的速度较慢,这表明对认知衰老轨迹的队列效应显著. 这些效应有利于所有水平的口语流度在整个寿命.
科学领域:
- 认知衰老的研究研究.
- 神经科学是一个神经科学.
- 老年学是一门学科.
背景情况:
- 横截面研究表明,晚期出生的人群的认知能力有所改善.
- 对认知衰退率中的队列效应的纵向证据有限.
- 跨认知轨迹分布的队列效应一致性尚未得到充分探索.
研究的目的:
- 为了研究语音流的衰老轨迹上的队列效应.
- 在认知衰老的全部分布中检查队列效应的可变性.
- 为了确定队列效应是否会影响与年龄相关的认知衰退的速度.
主要方法:
- 利用了9波的英国长度老化研究 (ELSA) 数据.
- 开发了性别和教育调整的语言流的纵向规范.
- 采用了量子位混合模型,使用分线建模的年龄来评估第10,第50和第90量子位的出生队列效应.
主要成果:
- 晚期出生的队列随着年龄的增长,口语流性呈现较小的下降 (p < .001).
- 在所有年龄段的后期出生的队伍中,口语流利度总是更高.
- 队列效应显著影响整个语言流轨迹的范围.
结论:
- 队列效应显然影响纵向认知衰老,特别是语言流性.
- 认知衰老的特点是影响所有绩效水平的队列依赖轨迹.
- 研究结果强调了考虑出生队列对于了解老年人认知衰退的重要性.
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