Low-frequency oscillation amplitude elevation of prefrontal cerebral hemodynamics with driving duration during prolonged driving test

Zishan Deng; Yuan Gao; Ting Li

doi:10.1117/12.2287080

12 February 2018 Low-frequency oscillation amplitude elevation of prefrontal cerebral hemodynamics with driving duration during prolonged driving test

Zishan Deng, Yuan Gao, Ting Li

Author Affiliations +

Proceedings Volume 10481, Neural Imaging and Sensing 2018; 104810Y (2018) https://doi.org/10.1117/12.2287080
Event: SPIE BiOS, 2018, San Francisco, California, United States

Abstract

It has been observed that there is a low-frequency oscillation (LFO) around 0.1 Hz in cerebral hemodynamics related to brain activity. Since functional near-infrared spectroscopy (fNIRS) is a novel technique to monitor hemodynamic responses noninvasively, we applied it to detect LFOs of cerebral hemodynamic parameters, such as oxyhemoglobin and deoxyhemoglobin, during prolonged driving. We performed an experiment lasting for 7 hours and an experimental test was done every hour and 8 times altogether. 7 subjects were recruited and the data of 3 of them were analyzed. By means of Fourier transformation, the amplitude of the three parameters during each test at 0.1 Hz in frequency domain was extracted. The results showed an increasing trend in the 0.1 Hz amplitudes of the three hemodynamic parameters during 7 hours' simulated driving test. Our findings indicated the potential of LFOs of prefrontal cerebral hemodynamics in brain research and brain function evaluation.

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Citation Download Citation

Zishan Deng, Yuan Gao, and Ting Li "Low-frequency oscillation amplitude elevation of prefrontal cerebral hemodynamics with driving duration during prolonged driving test", Proc. SPIE 10481, Neural Imaging and Sensing 2018, 104810Y (12 February 2018); https://doi.org/10.1117/12.2287080

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