Fontana Juan M, Lopez-Meyer Paulo, Sazonov Edward S
Department of Electrical and Computer Engineering, University of Alabama, Tuscaloosa, AL 35487, USA.
Annu Int Conf IEEE Eng Med Biol Soc. 2011;2011:1884-7. doi: 10.1109/IEMBS.2011.6090534.
The development of accurate and objective tools for monitoring of ingestive behavior (MIB) is one of the most important needs facing studies of obesity and eating disorders. This paper presents the design of an instrumentation module for non-invasive monitoring of food ingestion in laboratory studies. The system can capture signals from a variety of sensors that characterize ingestion process (such as acoustical and other swallowing sensors, strain sensor for chewing detection and self-report buttons). In addition to the sensors, the data collection system integrates time-synchronous video footage that can be used for annotation of subject's activity. Both data and video are simultaneously and synchronously acquired and stored by a LabVIEW-based interface specifically developed for this application. This instrumentation module improves a previously developed system by eliminating the post-processing stage of data synchronization and by reducing the risks of operator's error.
开发用于监测摄食行为（MIB）的准确且客观的工具是肥胖症和饮食失调研究面临的最重要需求之一。本文介绍了一种用于实验室研究中食物摄入非侵入性监测的仪器模块设计。该系统可以从各种表征摄食过程的传感器捕获信号（如声学和其他吞咽传感器、用于咀嚼检测的应变传感器以及自我报告按钮）。除了传感器之外，数据收集系统还集成了可用于标注受试者活动的时间同步视频片段。数据和视频均由专门为此应用开发的基于LabVIEW的接口同时且同步采集和存储。该仪器模块通过消除数据同步的后处理阶段并降低操作员错误风险，对先前开发的系统进行了改进。
