Recent studies in cognitive psychology have challenged the traditional view that multitasking enhances productivity. Researchers found that when individuals attempt to perform two complex tasks simultaneously, their brains rapidly switch between the tasks rather than processing them in parallel. This switching incurs a cognitive cost, known as 'task-set reconfiguration,' which leads to slower reaction times and increased error rates. Moreover, frequent multitasking has been linked to reduced working memory capacity and diminished ability to filter out irrelevant information. While some argue that certain individuals, termed 'supertaskers,' are immune to these deficits, the majority of the population experiences significant performance degradation. These findings suggest that in academic and professional settings, focusing on single tasks sequentially may yield higher quality outcomes than attempting to juggle multiple responsibilities at once.
❓ 本文によると、マルチタスクが生産性を低下させる主な理由は何ですか?
A. A) 脳はタスクを並行して処理するため、過剰な刺激が生じる。
B. B) タスク間の切り替えには認知的な調整が必要であり、それがパフォーマンスを低下させる。
C. C) マルチタスクは作業記憶の容量を増加させ、混乱を引き起こす。
D. D) スーパータスカーだけが、効果的にマルチタスクをこなすことができる。
✅ 正确答案
B) Switching between tasks requires a cognitive adjustment that slows performance.
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