FUNCTIONAL MEASURE OF BRAIN ACTIVITY - BRAIN-STEM TRANSMISSION TIME
FUNCTIONAL MEASURE OF BRAIN ACTIVITY - BRAIN-STEM TRANSMISSION TIME
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DOI：
10.1016/0013-4694(79)90164-0
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发表时间：
1979-01-01
期刊：
影响因子：
--
通讯作者：
KINARTI, R
中科院分区：
文献类型：
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作者：
FABIANI, M;SOHMER, H;KINARTI, R
表面记录的听觉神经和脑干反应通常用于人类诊断目的。当对听觉诊断感兴趣时，电响应阈值是最重要的。当用于神经诊断时，响应的波形很重要。作为响应波形的一个方面的测量，建议使用脑干传输时间（BTT），其定义为第一个耳垂负波（听觉神经的响应，脑干的输入）和来自下丘区域的耳垂正波（脑干的输出）之间的时间间隔。 BTT 在新生儿中最长，在大约 3 岁时接近成人值，相对独立于点击强度、传导性听力损失（中耳病变）、点击率（高率除外）和点击频率（过滤点击声）。研究发现，在给定的年龄组中，BTT 通常独立于大多数刺激条件，这使其成为脑干活动的有用功能测试。
Surface-recorded auditory nerve and brain stem responses are being used routinely for diagnostic purposes in man. When interest is in auditory diagnosis, the electric response threshold is of primary importance. When used in neurological diagnosis, the wave form of the response is important. As a measure of one aspect of response wave form, the use of brain stem transmission time (BTT), defined as the time interval between the first earlobe-negative wave (response of the auditory nerve, the input to the brain stem) and the earlobe-positive wave from the region of the inferior colliculus (the output of the brain stem) is suggested. BTT is longest in neonates, approaches adult values at the age of about 3 yr, is relatively independent of click intensity, conductive hearing loss (middle ear lesion), click rate (except for high rates) and click frequency (filtered clicks). The finding that in a given age group, BTT is generally independent of most stimulus conditions, makes it a useful functional test of brain stem activity.