Despite recent advances in brain research, understanding the various signals for pain and pain intensities\rin the brain cortex is still a complex task due to temporal and spatial variations of brain haemodynamics.\rIn this paper we have investigated pain based on cerebral hemodynamics via near-infrared spectroscopy\r(NIRS). This study presents a pain stimulation experiment that uses three acupuncture manipulation\rtechniques to safely induce pain in healthy subjects. Acupuncture pain response was presented and\rHaemodynamic pain signal analysis showed the presence of dominant channels and their relationship\ramong surrounding channels, which contribute the further pain research area.
Rojas, R. F., Huang, X., Liang Ou, K., Tran, D., & Md. Rabiul Islam, S. (2015). Analysis of Pain Hemodynamic Response Using Near-Infrared Spectroscopy (NIRS). The International Journal of Multimedia & Its Applications, 7(2), 31–42. https://doi.org/10.5121/ijma.2015.7203