New approach to terahertz diagnostics of human psychoemotional state
| Autor: | Alexander M. Chernorizov, S.B. Gatilov, E. E. Berlovskaya, A.M. Makurenkov, Alexander P. Shkurinov, Timofey Adamovich, Alexander Varaksin, Sergey A. Isaychev, N.I. Kurenkov, E. S. Isaychev, Olga P. Cherkasova, Ilya A. Ozheredov |
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| Rok vydání: | 2019 |
| Předmět: |
010302 applied physics
Physics business.industry Infrared Terahertz radiation Statistical and Nonlinear Physics Recording system 01 natural sciences Signal Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials 010309 optics Physical stress Optics Thz radiation 0103 physical sciences State (computer science) Electrical and Electronic Engineering business |
| Zdroj: | Quantum Electronics. 49:70-77 |
| ISSN: | 1468-4799 1063-7818 |
| Popis: | A new approach to terahertz (THz) diagnostics of the human psychoemotional state is proposed, based on the analysis of the THz contribution to the total signal while simultaneously recording the IR and THz emissions from the human body (hereinafter referred to as the IR – THz image). The developed image-processing algorithm allows extraction of the informative contribution determined by the THz radiation from the total signal perceived by the recording system. Simultaneous registration of the IR – THz images of the human face and the psychophysiological indicators are carried out in situations of physical stress (short-term intense physical exercise – squats functional test), electrical stimulation, and information stress (cognitive load – simple arithmetic mental calculations). The obtained data are compared with those of similar measurements at rest. It is shown that using cluster analysis of IR – THz images it is possible to divide the test subjects into classes according to the type of reaction of the circulatory system under stressful conditions. |
| Databáze: | OpenAIRE |
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