降噪耳机因其能有效屏蔽背景噪音而广受欢迎,但一项新的研究发现,这种流行的技术可能对听力健康产生潜在影响。据英国广播公司(BBC)报道,现代降噪耳机可能正在改变人们大脑处理声音的方式。
一位25岁的英国女性在听力测试中结果显示正常,但她却难以集中注意力于特定声音,最终被诊断为听觉处理障碍(APD)。这是一种影响大脑理解声音和口头语言的神经性疾病。BBC的调查显示,英国国家卫生服务(NHS)的五个听力学部门报告称,近期因类似声音处理问题而被转诊的年轻患者数量有所增加,主要问题是难以正常处理声音。
报道提出的一种理论是,降噪技术可能导致大脑逐渐“忘记”如何自主筛选声音。长期依赖降噪耳机屏蔽背景噪音,可能使大脑的自然声音过滤机制退化。患者的听力学家也呼吁,需要进一步研究降噪技术对大脑功能的长期影响。这一发现提醒人们,在享受降噪耳机带来的便利时,也需关注其可能带来的健康风险。
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