Non-contact imaging of peripheral hemodynamics during cognitive and psychological stressors

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 p...

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Bibliographic Details
Published in:Scientific reports 2020-07, Vol.10 (1), p.10884-10884, Article 10884
Main Authors: McDuff, Daniel, Nishidate, Izumi, Nakano, Kazuya, Haneishi, Hideaki, Aoki, Yuta, Tanabe, Chihiro, Niizeki, Kyuichi, Aizu, Yoshihisa
Format: Article
Language:English
Subjects:
631/477/2811
639/166/985
Acoustic Stimulation
Adult
Autonomic nervous system
Blood Volume
Cognitive ability
Datasets as Topic
Face
Female
Fingers
Hand
Heart Rate - physiology
Hemodynamics
Hemoglobin
Hemoglobins - analysis
Humanities and Social Sciences
Humans
Male
Mathematics
Melanin
Melanins - analysis
multidisciplinary
Photic Stimulation
Photoplethysmography - methods
Science
Science (multidisciplinary)
Stress, Psychological - diagnostic imaging
Stress, Psychological - physiopathology
Thinking
Vasomotor System - physiology
Young Adult
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Summary: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 C m and hemoglobin C HbO 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.
ISSN:2045-2322
2045-2322
DOI:10.1038/s41598-020-67647-6