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.
❓ According to the passage, what is the main consequence of attempting to multitask?
A. A) Increased efficiency in completing complex tasks.
B. B) A higher likelihood of mental fatigue and reduced accuracy.
C. C) Enhanced activity in the prefrontal cortex during task performance.
D. D) The ability to process multiple streams of information in parallel.
✅ 正确答案
B) A higher likelihood of mental fatigue and reduced accuracy.
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