摘要：关于“数字痴呆症”这一概念，人们普遍存在担忧——即依赖智能手机和互联网会降低人的认知能力。但至少在50岁以上的人群中，这些技术似乎实际上产生了相反的效果。

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节选自 New Scientist International Edition – 26 April 2025

THERE is much concern about the notion of “digital dementia” – the idea that relying on smartphones and the internet reduces a person’s cognitive abilities. But among those over 50 at least, these technologies appear to actually have the opposite effect.

关于“数字痴呆症”这一概念，人们普遍存在担忧——即依赖智能手机和互联网会降低人的认知能力。但至少在50岁以上的人群中，这些技术似乎实际上产生了相反的效果。

An analysis of nearly 60 studies involving 410,000 people in this age group has found that those who spend more time using smartphones, computers and the internet are less likely to have cognitive impairment – and more likely to have slower cognitive decline – than people who spend less time using these technologies.

一项针对涉及该年龄段41万人的近60项研究的分析发现，与较少使用智能手机、电脑和互联网的人群相比，使用这些技术时间较多的人出现认知障碍的可能性较低，且认知能力下降的速度也更慢。

While this analysis can’t establish causation, it suggests that digital technologies encourage behaviours that help preserve cognition in the first generation of people to have access to them at an older age, says Jared Benge at the University of Texas at Austin.

得克萨斯大学奥斯汀分校的贾里德·本奇表示，尽管这项分析无法确定因果关系，但它表明，对于在老年阶段首次接触数字技术的第一代人而言，这些技术促成的行为模式可能有助于保护认知功能。

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来源：友好教育