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

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Abstract

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.

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Authors and Affiliations

  1. The Key Laboratory of Biomedical Photonics of Ministry of Education, Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, 430074, China

    Xiaohua Lv, Yi Zheng, Ting Li, Zhongxing Zhang & Hui Gong

Authors
  1. Xiaohua Lv
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  2. Yi Zheng
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  3. Ting Li
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  4. Zhongxing Zhang
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  5. Hui Gong
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Corresponding author

Correspondence to Hui Gong.

Additional information

Translated and revised from Chinese Journal of Biomedical Engineering, 2007, 26(6): 898–902 [译自: 中国生物医学工程学报]

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Lv, X., Zheng, Y., Li, T. et al. A portable functional imaging instrument for psychology research based on near-infrared spectroscopy. Front. Optoelectron. China 1, 279–284 (2008). https://doi.org/10.1007/s12200-008-0057-6

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  • DOI: https://doi.org/10.1007/s12200-008-0057-6

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