Recent studies in cognitive neuroscience have revealed that the human brain's capacity for multitasking is severely limited, contrary to popular belief. When individuals attempt to perform two tasks simultaneously, such as reading while listening to music with lyrics, the prefrontal cortex must rapidly switch attention between the two activities. This switching process incurs a 'cognitive cost,' leading to reduced efficiency and increased error rates. Furthermore, research indicates that heavy media multitaskers perform worse on tests of task-switching ability compared to light multitaskers, suggesting that frequent multitasking may impair executive control functions. These findings challenge the assumption that modern technology enhances productivity by enabling parallel processing, instead suggesting that focused, sequential attention is more conducive to deep learning and complex problem-solving. Consequently, educators and policymakers are urged to reconsider the integration of digital devices in academic settings, promoting environments that minimize distractions and encourage sustained concentration.
❓ 该段落中提到的研究主要发现是什么?
A. 多任务处理能提升大多数人的认知效率。
B. 大脑能够有效处理多项任务而不损失性能。
C. 多任务处理会导致效率降低,并可能损害执行控制能力。
D. 技术通过并行处理提升生产力。
✅ 正确答案
Multitasking leads to reduced efficiency and may impair executive control.