A fNIRS device for measuring low frequency oscillation signal on the non-hair-bearing forehead

EasyChair Preprint no. 290

Abstract

Since the frequency of the low-frequency oscillation signal [1] (LFO) of the blood oxygen is 0.01 Hz to 0.15 Hz and it is independent of the heart beat signal and the respiratory signal, the slow change of the hemodynamic parameters can be detected. In order to facilitate the low frequency oscillation signal to the non-hair-bearing forehead, we have developed a frequency-division-multiplexed modulated continuous wave functional near-infrared spectroscopy imaging system [2]. The light source emits laser light of the same wavelength at the same time, and the carrier frequency of the emitted light source is different at the same time [3]. This method is called frequency division multiplexing and can effectively eliminates crosstalk between light sources [4].

Keyphrases: fNIRS device, Frequency Division Multiplexing, Low frequency oscillation signal

@Booklet{EasyChair:290,
  author = {Yingwei Li and Xiangping Cheng and Guoli Wu and Weichao Xiong and Yi Yuan and Xiaoli Li},
  title = {A fNIRS device for measuring low frequency oscillation signal on the non-hair-bearing forehead},
  howpublished = {EasyChair Preprint no. 290},
  doi = {10.29007/35r4},
  year = {EasyChair, 2018}}