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 relatively fixed in its structure and function after a critical period in childhood. However, recent research demonstrates that the brain remains capable of substantial reorganization throughout life. This adaptability is driven by synaptic strengthening and the formation of new neural connections in response to learning, experience, or injury. For instance, individuals who lose their sight often exhibit enhanced tactile and auditory processing, as the visual cortex is recruited for other sensory modalities. While this plasticity offers remarkable potential for rehabilitation after stroke or trauma, it is not limitless. The extent of reorganization depends on factors such as age, the nature of the damage, and the intensity of training. Consequently, therapeutic interventions must be carefully timed and tailored to harness the brain's adaptive capacities effectively.