Analysis of Pain Hemodynamic Response Using Near-Infrared Spectroscopy (NIRS)

TL;DR

This study investigates pain-related brain hemodynamics using near-infrared spectroscopy (NIRS) during acupuncture-induced pain, identifying key channels and relationships to advance understanding of pain signals in the brain cortex.

Contribution

It introduces a novel experimental approach combining acupuncture pain induction with NIRS to analyze cerebral hemodynamics related to pain.

Findings

Identification of dominant channels in pain response

Analysis of channel relationships during pain stimuli

Insights into cerebral hemodynamics associated with pain

Abstract

Despite recent advances in brain research, understanding the various signals for pain and pain intensities in the brain cortex is still a complex task due to temporal and spatial variations of brain hemodynamics. In this paper we have investigated pain based on cerebral hemodynamics via near-infrared spectroscopy (NIRS). This study presents a pain stimulation experiment that uses three acupuncture manipulation techniques to safely induce pain in healthy subjects. Acupuncture pain response was presented and hemodynamic pain signal analysis showed the presence of dominant channels and their relationship among surrounding channels, which contribute the further pain research area.