Bolger C, Sheahan N, Coakley D, Malone J
Mercer's Institute for Research on Ageing, St James's Hospital, Dublin, Ireland.
Clin Phys Physiol Meas. 1992 May;13(2):151-9. doi: 10.1088/0143-0815/13/2/007.
Recent reports suggest that high frequency eye tremor or ocular microtremor (OMT) may be a useful indicator of brainstem function. The method of record analysis, and in particular the amount of record subjected to such analysis, has varied widely. We have recorded OMT from 10 normal subjects. Using these records we have performed 42 distinct replication reliability studies. We suggest seven parameters of OMT (including overall frequency of tremor) which may be of value in comparing abnormal with normal records. For each parameter we have determined the optimal duration of the record to analyse and the reliability of such analysis. Our results suggest that at least 5 s of OMT should be analysed to yield an acceptable estimate of all seven parameters.
最近的报告表明，高频眼震或眼球微震颤（OMT）可能是脑干功能的一个有用指标。记录分析方法，尤其是接受此类分析的记录量，差异很大。我们记录了10名正常受试者的OMT。利用这些记录，我们进行了42项不同的重复可靠性研究。我们提出了OMT的七个参数（包括震颤的总体频率），这些参数可能有助于比较异常记录与正常记录。对于每个参数，我们已经确定了要分析的记录的最佳时长以及此类分析的可靠性。我们的结果表明，至少应分析5秒的OMT，以便对所有七个参数得出可接受的估计值。
