Recent studies in cognitive neuroscience have revealed that the human brain's capacity for multitasking is far more limited than previously assumed. While many individuals believe they can efficiently perform 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 alternating between tasks. Furthermore, neuroimaging data show that the prefrontal cortex, responsible for executive control, struggles to process competing streams of information concurrently. Consequently, attempts to multitask often lead to diminished productivity and higher error rates, challenging the popular notion of multitasking as a desirable skill in modern work environments.
❓ According to the passage, what is the main consequence of attempting to multitask?
A. Enhanced productivity due to efficient task management
B. Improved accuracy and faster reaction times
C. Reduced performance stemming from cognitive switch costs
D. Increased activation of the prefrontal cortex
✅ 正确答案
Reduced performance stemming from cognitive switch costs
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