Recent studies in cognitive psychology have revealed that the human brain's capacity for multitasking is largely illusory. While individuals often believe they can efficiently handle multiple tasks simultaneously, research indicates that what actually occurs is rapid task-switching, which incurs a cognitive cost known as 'switch cost.' This cost manifests as reduced accuracy and increased reaction time when shifting attention between tasks. Furthermore, neuroimaging data show that the prefrontal cortex, responsible for executive control, is heavily taxed during such switching, leading to quicker mental fatigue. These findings challenge the modern workplace's glorification of multitasking, suggesting that sequential focus may enhance overall productivity and reduce errors, particularly in complex problem-solving scenarios.
❓ この文章によると、マルチタスクを試みることの主な結果は何ですか?
A. A) 複雑なタスクを完了する際の効率向上。
B. B) 精神的な疲労が生じやすくなり、正確性が低下する可能性が高まる。
C. C) 課題遂行中の前頭前皮質における活動の亢進。
D. D) 複数の情報ストリームを並行して処理する能力。
✅ 正确答案
B) A higher likelihood of mental fatigue and reduced accuracy.
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