Time Domain Description of Polysomnography Data

描述（由申请人提供）：拟开发多导睡眠图数据的时域分析工具，并利用颜色维度提高多导睡眠图数据在计算机显示器上以30秒（或更长）周期显示的准确性。时域工具将导致客观量化多导睡眠图数据中包含的信息的改进方法，这将补充从睡眠分期获得的信息。该项目的可行性将在第一阶段通过开发量化数据中存在的慢波活动的工具来证明。这些工具将包括一个图形界面，以方便用户输入，并提供获取处理过的数据的多种方法。还将开发一个数据库管理系统来管理睡眠波数据。计算机显示器由于分辨率有限，无法在30秒内显示多导睡眠图数据。除非采取措施防止频率混叠，否则显示的数据可能会严重失真。这项工作将发展频率识别技术，可以利用额外的颜色维度来更准确地显示数字睡眠图数据。

DESCRIPTION (provided by applicant): It is proposed to develop time domain analysis tools for polysomnography data and to use the color dimension to improve the accuracy of the polysomnography data displayed on a computer monitor in thirty second (or longer) epochs. The time domain tools will lead to improved methods for objectively quantifying the information contained in polysomnography data which will supplement the information obtained from sleep staging. The project's feasibility will be demonstrated in Phase I by developing tools for quantifying the slow-wave activity present in the data. The tools will include a graphical interface to facilitate the user inputs and provide multiple means for obtaining the processed data. A database management system will also be developed for managing the sleep-wave data. Computer monitors, because of their limited resolution, are unable to display polysomnography data in thirty second epochs. Unless means are taken to prevent frequency aliasing, the data displayed may be severely distorted. This work will develop frequency discrimination techniques which can utilize the additional dimension of color to more accurately display digital polsomnography data.