Recent studies in cognitive science have challenged the traditional view that multitasking enhances productivity. Researchers such as David Meyer at the University of Michigan have demonstrated that the human brain is not wired to process multiple complex tasks simultaneously. Instead, what appears to be multitasking is actually rapid task-switching, which incurs a cognitive cost known as 'switching penalty.' This penalty manifests as reduced accuracy and increased time to complete each task. Furthermore, neuroimaging studies reveal that the prefrontal cortex, responsible for executive control, becomes overloaded when attempting to manage competing demands. While some argue that digital natives are more adept at multitasking, empirical evidence suggests otherwise; even younger individuals show significant performance degradation when juggling tasks. Consequently, experts recommend a 'single-tasking' approach in academic and professional settings to optimize cognitive efficiency and output quality.
❓ この文章によると、一度に複数のタスクを実行しようとすることの主な結果は何ですか?
A. A) 神経適応による生産性の向上。
B. B) 精度の低下と、タスクに必要な時間の増加。
C. C) 時間の経過とともに前頭前皮質の機能が改善されること。
D. D) 若年層には測定可能な影響は見られない。
✅ 正确答案
B) A reduction in accuracy and an increase in time needed for tasks.
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