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瞳孔知道:瞳孔膨胀指数及其在正常衰老中的抑制能力

Mohamad El Haj^1,2,3, Claire Boutoleau-Bretonnière⁴, Guillaume Chapelet^2,5

¹Institut Universitaire de France, 75000 Paris, France.

Journal of clinical medicine

|July 29, 2023

概括

瞳孔膨胀反映了老年人的认知努力. 这项研究发现,在具有挑战性的认知抑制任务中,瞳孔尺寸增加,类似于年轻人,表明在衰老中保持认知努力反应.

科学领域:

认知神经科学认知神经科学
人类衰老研究研究
眼科医生眼科眼科

背景情况:

瞳孔膨胀是认知努力的公认指标.
了解老年人的认知负载对于健康衰老研究至关重要.

研究的目的:

为了调查老年人是否在需要认知抑制的任务中表现出增加的瞳孔扩张.
在Stroop任务上,比较老年人和年轻成年人之间的瞳孔大小和任务准确性.

主要方法:

44名老年人和44名年轻人参加了.
参与者完成了Stroop任务 (命名颜色,阅读单词,干扰条件).
用眼睛追踪眼镜测量瞳孔膨胀.

主要成果:

这两个年龄组在干扰条件下表现出较少的准确反应.
在干扰条件下,老年人和年轻人的瞳孔扩张显著增加.
瞳孔膨胀与各个年龄组的认知努力相关.

结论:

瞳孔膨胀是老年人认知努力的有效指标.
这种反应在正常衰老中保持不变,即使在像Stroop任务这样的苛刻的认知抑制任务中.

关键词:

衰老的衰老衰老的衰老抑制抑制抑制的抑制作用一个学生的学生.瞳孔的大小瞳孔的大小瞳孔测量是什么意思

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