🤖 AI Summary
日本での新規研究により、子供たちのスクリーンタイムが認知機能に与える影響に関する一般的な認識が揺らいだ。フィンランドで行われたこの研究は、子ども時代から Adolescence までスクリーンタイムが増え続けた子供たちの方が認知処理能力が高い傾向があることを発見した。研究者であるPetri Jalanko博士は、「スクリーンタイム自体が悪いものとして見るのは過大な判断であり、物理的な活動とスクリーンタイムをバランスよく管理することが大切」と述べている。
また、運動の種類も認知機能に影響を与えていることが明らかになった。女の子では、幼少期から Adolescence まで軽度の運動量が多いと、作業記憶が良い傾向にある。男児では、指導された運動を長期間参加していると、作業記憶が良い傾向にある。
一方で、自己報告による無監視運動量が低いと認知処理能力が高い傾向があった点は予想外だった。これはセンサーが活動中に何を行っているかを正確には測ることができないためとする説明がある。これらの研究結果は「Pediatric Exercise Science」に発表された。
この研究から、子供たちがデバイスやスクリーンを使用する際の活動内容にも注目することが重要であり、問題解決能力や創造性などを高める活動を促すべきであるとまとめられている。
bryanandaimee shares a report from ScienceDaily: A Finnish study has found an unexpected association between screen use and cognitive performance. Children who accumulated more screen time as they grew up tended to show better cognitive processing during adolescence. One of the researchers cautions against viewing screen time as entirely harmful and says the goal should be to balance physical activity with screen use that encourages active thinking. [...] "The findings suggest that screen time can support children's and adolescents' cognitive processing. Presumably, the essential point here is what kind of things they do in their screen time. Teachers and parents should encourage children to use devices and screens in such ways that promote active thinking, problem-solving, creativity and learning," states Doctoral Researcher Petri Jalanko from the University of Jyvaskyla.
Digital activities that involve learning, creativity, problem-solving, or other forms of active mental engagement could potentially help explain the association observed in the study. "We should not regard screen time solely as harmful but seek balance between physical activity and screen time that promotes active thinking," Jalanko summarizes. The relationship between physical activity and cognition was more complicated. Among girls, greater amounts of light intensity physical activity since childhood were associated with better working memory during adolescence. Among boys, greater participation in guided physical activity from childhood through adolescence was linked to better working memory.
The researchers also found an unexpected pattern involving unsupervised exercise. Lower levels of self-reported unsupervised physical activity were associated with better cognitive processing in adolescence. By contrast, physical activity and sedentary time measured using a device that tracked heart rate and movement were not associated with cognitive processing. One possible explanation is that these sensors can measure movement and physiological activity but cannot determine exactly what a person is doing during periods of activity or inactivity. The findings have been published in the journal Pediatric Exercise Science.
Read more of this story at Slashdot.
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