Bhutta M Raheel, Hong Keum-Shik, Kim Beop-Min, Hong Melissa Jiyoun, Kim Yun-Hee, Lee Se-Ho
Department of Cogno-Mechatronics Engineering, Pusan National University, Busan 609-735, South Korea.
Department of Biomedical Engineering, Korea University, Seoul 136-703, South Korea.
Rev Sci Instrum. 2014 Feb;85(2):026111. doi: 10.1063/1.4865124.
Given that approximately 80% of blood is water, we develop a wireless functional near-infrared spectroscopy system that detects not only the concentration changes of oxy- and deoxy-hemoglobin (HbO and HbR) during mental activity but also that of water (H2O). Additionally, it implements a water-absorption correction algorithm that improves the HbO and HbR signal strengths during an arithmetic task. The system comprises a microcontroller, an optical probe, tri-wavelength light emitting diodes, photodiodes, a WiFi communication module, and a battery. System functionality was tested by means of arithmetic-task experiments performed by healthy male subjects.
鉴于血液中约80%是水，我们开发了一种无线功能近红外光谱系统，该系统不仅能检测精神活动期间氧合血红蛋白和脱氧血红蛋白（HbO和HbR）的浓度变化，还能检测水（H2O）的浓度变化。此外，它还实现了一种吸水校正算法，可在算术任务期间提高HbO和HbR信号强度。该系统包括一个微控制器、一个光学探头、三波长发光二极管、光电二极管、一个WiFi通信模块和一个电池。通过健康男性受试者进行的算术任务实验对系统功能进行了测试。
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