雅思阅读

📖 Reading Passage

The concept of neuroplasticity has revolutionized our understanding of the human brain. Traditionally, scientists believed that the brain's structure was fixed after a critical period in childhood. However, recent research demonstrates that the brain remains capable of reorganizing itself throughout life. This adaptability occurs through the strengthening or weakening of synaptic connections, a process influenced by learning, experience, and even injury. For instance, when one sensory modality is lost, such as vision, the corresponding cortical areas may be recruited for other functions like enhanced hearing. This neural flexibility underlies both the recovery from brain damage and the acquisition of new skills. Nevertheless, the extent of plasticity varies with age, being more pronounced in younger individuals but still significant in adults. Understanding these mechanisms holds promise for therapeutic interventions in neurological disorders.