Related Experiment Video
Updated: Aug 30, 2025

Three-Dimensional Finger Motion Tracking during Needling: A Solution for the Kinematic Analysis of Acupuncture Manipulation
Published on: October 28, 2021
Laser Acupuncture and Dynamic Pulse Reaction Quantified by Smartphone:Two Experimental Examples
Gerhard Litscher1,2, Ying-Ling Chen2,3, Mark C Hou4,5
1Research Unit for Complementary and Integrative Laser Medicine, Research Unit of Biomedical Engineering in Anesthesia and Intensive Care Medicine, and TCM Research Center, Medical University of Graz, Graz, Austria.
The dynamic pulse reaction, a vascular autonomic signal, requires more research. This study demonstrates its measurement using a modified smartphone during laser ear acupuncture, providing quantitative data for better understanding.
Area of Science:
- Physiology
- Acupuncture Research
- Autonomic Nervous System
Background:
- The dynamic pulse reaction (Nogier reflex), also known as the vascular autonomic signal or Reflex-Auriculo-Cardiac (RAC), is not widely accepted or understood in current medical practice.
- There is a need for both qualitative and quantitative research to provide scientific evidence for this phenomenon.
Purpose of the Study:
- To demonstrate the feasibility of recording dynamic pulse reactions using a modified smartphone.
- To present quantitative data from laser acupuncture experiments on ear acupuncture points.
Main Methods:
- Utilized a modified smartphone for signal analysis.
- Conducted experiments involving laser acupuncture stimulation at specific ear acupuncture points.
- Recorded dynamic pulse reactions (vascular autonomic signals).
Main Results:
- Successfully recorded 2 instances of dynamic pulse reactions.
- Provided quantitative data derived from smartphone-based analysis during experimental conditions.
- Demonstrated the potential of technology in measuring physiological responses.
Conclusions:
- The study showcases a novel method for measuring the dynamic pulse reaction using accessible technology.
- The presented recordings offer preliminary quantitative evidence supporting the existence and measurability of the vascular autonomic signal.
- Further research is warranted to validate these findings and integrate the dynamic pulse reaction into clinical practice.

