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.
❓ Theo đoạn văn, lý do chính khiến việc đa nhiệm làm giảm năng suất là gì?
A. B) Não xử lý các nhiệm vụ song song, dẫn đến tình trạng kích thích quá mức.
B. B) Việc chuyển đổi giữa các nhiệm vụ đòi hỏi sự điều chỉnh nhận thức, làm chậm hiệu suất thực hiện.
C. C) Đa nhiệm làm tăng dung lượng trí nhớ làm việc, gây ra sự nhầm lẫn.
D. D) Siêu nhân là những người duy nhất có thể xử lý đa nhiệm một cách hiệu quả.
✅ 正确答案
B) Switching between tasks requires a cognitive adjustment that slows performance.
IELTS Reading Tips
Skim the questions first, underline keywords, then locate in the passage
Watch for paraphrasing; correct answers are often reworded
Be wary of absolute statements (all, always, never) — usually wrong
Pay attention to content after transition words (however, but, yet)
Manage time: about 20 minutes per passage; skip difficult questions first