heart rate variability (HRV)

While various VOCs are known to show neurotoxic effects, the detailed mechanisms of VOCs onautonomic nervous system have not been fully understood partly because objective and quantitativemeasures to indicate neural abnormalities are still under development. Nevertheless, heart ratevariability (HRV) has been recently proposed as an indicative measure of the autonomic defect. In thisstudy, we used HRV as an indicative measure of the autonomic defect to relate their values to thepersonal concentrations of VOCs measured by a real-time VOC monitor.