雅思阅读

📖 Reading Passage

The concept of 'neuroplasticity' has revolutionized our understanding of the human brain. Previously, it was believed that the adult brain was largely fixed in its structure and function after a critical period in childhood. However, recent research demonstrates that the brain remains capable of significant reorganization throughout life, adapting to new experiences, learning, and even injury. This plasticity occurs at multiple levels, from synaptic connections between neurons to entire cortical maps. For instance, individuals who lose their sight often exhibit enhanced auditory or tactile processing, as the visual cortex is recruited for other sensory modalities. Furthermore, neuroplasticity underpins the effectiveness of rehabilitation after stroke, where targeted therapy can help reroute functions to undamaged brain regions. This dynamic view challenges the old paradigm and holds profound implications for education, mental health treatment, and cognitive enhancement.