Non-contact imaging of peripheral hemodynamics during cognitive and psychological stressors
| Autor: | Izumi Nishidate, Yuta Aoki, Daniel McDuff, Kyuichi Niizeki, Hideaki Haneishi, Chihiro Tanabe, Yoshihisa Aizu, Kazuya Nakano |
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| Rok vydání: | 2020 |
| Předmět: |
Adult
Male Hemodynamics lcsh:Medicine Datasets as Topic Vasomotion 02 engineering and technology 01 natural sciences Signal Article 010309 optics Fingers Thinking Hemoglobins Young Adult Heart Rate Photoplethysmogram 0103 physical sciences Human behaviour 0202 electrical engineering electronic engineering information engineering Medicine Humans lcsh:Science Photoplethysmography Melanins Multidisciplinary Blood Volume business.industry Pulse (signal processing) lcsh:R 020207 software engineering Cognition Hand Peripheral Vasomotor System Autonomic nervous system Acoustic Stimulation Face lcsh:Q Female business Biomedical engineering Mathematics Photic Stimulation Stress Psychological |
| Zdroj: | Scientific Reports Scientific Reports, Vol 10, Iss 1, Pp 1-13 (2020) |
| ISSN: | 2045-2322 |
| Popis: | Peripheral hemodynamics, measured via the blood volume pulse and vasomotion, provide a valuable way of monitoring physiological state. Camera imaging-based systems can be used to measure these peripheral signals without contact with the body, at distances of multiple meters. While researchers have paid attention to non-contact imaging photoplethysmography, the study of peripheral hemodynamics and the effect of autonomic nervous system activity on these signals has received less attention. Using a method, based on a tissue-like model of the skin, we extract melanin $$\text {C}_{m}$$Cm and hemoglobin $$\text {C}_{HbO}$$CHbO concentrations from videos of the hand and face and show that significant decreases in peripheral pulse signal power (by 36% ± 29%) and vasomotion signal power (by 50% ± 26%) occur during periods of cognitive and psychological stress. Via three experiments we show that similar results are achieved across different stimuli and regions of skin (face and hand). While changes in peripheral pulse and vasomotion power were significant the changes in pulse rate variability were less consistent across subjects and tasks. |
| Databáze: | OpenAIRE |
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