Evoked Ofoacoustic Emissions in Normal Hearing Infants and Children: Emerging Data and Issues
Evoked Ofoacoustic Emissions in Normal Hearing Infants and Children: Emerging Data and Issues
复制标题
正常听力婴儿和儿童的诱发声发射：新数据和问题
作者：
S. Norton;J. Widen
诱发耳声发射（EOAEs）是一种很有前途的工具，以评估儿童耳蜗的状态。从正常的听力科目，从出生到29.9岁的初步数据进行了讨论。EOAE在婴儿耳中存在且稳健。然而，即使在仔细筛选的样本中，随着年龄的增加，固定刺激水平的EOAE振幅也有统计学显著性降低。目前尚不清楚这些与年龄相关的变化是否是由于外耳和/或中耳声学的正常发育变化、耳蜗力学的正常发育变化和/或日常耳蜗磨损所致。诱发发射的儿科人群的进一步应用有关的问题进行了讨论。
Evoked otoacoustic emissions (EOAEs) are a promising tool for evaluating cochlear status in children. Preliminary data from normal-hearing subjects ranging from birth to 29.9 years old are discussed. EOAEs are present and robust in infant ears. However, there is a statistically significant decrease in EOAE amplitude for a fixed stimulus level with increasing age even in a carefully screened sample. At the present time it is unclear if these ageassociated changes are due to normal developmental changes in the external and/or middle ear acoustics, normal developmental changes in cochlear mechanics and/or everyday cochlear wear and tear. Issues related to further application of evoked emissions to pediatrie populations are discussed.