论文部分内容阅读
强噪声可引起暂时性听阈偏移（TTS）成永久性听阈偏移（PTS）。TTS发生于噪声暴露后的当时并可持续数分钟至数小时。同时反复或持续暴露于噪声可导致PTS。但至今，TTS及PTS之间的关系尚未被揭示。该文选取体重250～5009、耳廓反射正常的健康豚鼠24只作为实验动物，分为3组。每
Strong noise can cause a temporary hearing threshold shift (TTS) to a permanent hearing threshold shift (PTS). TTS occurs immediately after noise exposure and can last from minutes to hours. Repeated or sustained exposure to noise can cause PTS. But so far, the relationship between TTS and PTS has not yet been revealed. Twenty-four healthy guinea pigs with body weight of 250-5009 and normal auricle reflex were selected as experimental animals and divided into three groups. each