Recent studies in cognitive neuroscience have revealed that the human brain's capacity for multitasking is largely illusory. When individuals attempt to perform two complex tasks simultaneously, the prefrontal cortex rapidly switches between them rather than processing them in parallel. This switching incurs a 'cognitive cost,' manifesting as reduced accuracy and increased reaction time. Furthermore, research indicates that habitual multitaskers perform worse on tests of sustained attention and memory retrieval compared to those who focus on single tasks sequentially. These findings challenge the popular assumption that multitasking enhances productivity, suggesting instead that it impairs higher-order cognitive functions. Consequently, experts advocate for 'monotasking' in educational and professional settings to optimize performance and neural efficiency.
❓ 根据文章所述，同时尝试执行两项复杂任务的主要影响是什么？
A. 它使大脑能够更高效地处理信息。
B. 这会导致准确性下降，响应时间变慢。
C. 它能增强持续注意力和记忆提取能力。
D. 它激活前额叶皮层的并行处理功能。
✅ 正确答案
It leads to a decline in accuracy and slower response times.