A portable functional imaging instrument for psychology research based on near-infrared spectroscopy

被引：12

作者：

Lv X. ^{[1
]}

Zheng Y. ^{[1
]}

Li T. ^{[1
]}

Zhang Z. ^{[1
]}

Gong H. ^{[1
]}

机构：

[1] The Key Laboratory of Biomedical Photonics of Ministry of Education, Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan

来源：

Frontiers of Optoelectronics in China | 2008年 / 1卷 / 3-4期

基金：

中国国家自然科学基金;

关键词：

functional brain activity; near-infrared spectroscopy; prefrontal cortex; temporal resolution;

D O I：

10.1007/s12200-008-0057-6

中图分类号：

学科分类号：

摘要：

To aid psychology researches on the function of the prefrontal cortex, a 16-channel brain functional imaging instrument based on near-infrared spectroscopy is developed. The probe of the instrument, covering a detection area of 15 cm × 4. 4 cm of the prefrontal cortex, is made flexible and is easy to fix to the forehead. By employing multi-wavelength LEDs as light sources, using integrated detectors and choosing a USB-interface-based data acquisition device, the whole system is portable and convenient to use, which is good for psychological experiments. The system software is developed using Visual C++ 6. 0, which controls the imaging process, measurement data plotting and storage. The maximal temporal resolution is about 100 ms. Noise and long-term drift test are given. The Valsalva maneuver experiment is used to validate the reliability of the instrument for monitoring hemodynamic changes. © 2008 Higher Education Press and Springer-Verlag GmbH.

引用

页码：279 / 284

页数：5

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