Electrical biomonitoring towards mobile diagnostics of human stress influence

Miniaturization of biomedical sensors has increased the importance of microsystem technology in medical applications, particularly microelectronics and micromachining. This paper presents a new approach to biomedical monitoring and analysis of selected human cognitive processes. The proposed technique measures human skin conductivity and heart rate using a dedicated measurement system which offers continuous bio-monitoring in a completely safe and non-invasive manner. This technique also has no undesired influence on natural physiological processes. The main goal is monitoring of the psycho-galvanic reflex (PGR) of the human skin that might be very useful for human stress diagnosis that is performed in different medical as well as psychological experiments.