Abstract
In this research, we aimed to estimate changes in mental workload from information on organic changes in peripheral vessels as measured by a non-contact sensing method using microwave radar. Experiments were conducted in a laboratory using two simple tasks, namely, a mental arithmetic task and an auditory task, in reference to the literature. Some previous studies have reported differences in the autonomic reflexes induced by voluntary and involuntary tasks. Moreover, these studies also found two types of physiological reflexes in response to the tasks. Heart rate variability (HRV) was induced by voluntary behavior, while stress was induced by a passive stimulus and showed an association with fluctuation of blood flow due to a change in the resistance of peripheral vessels. In our results, we detected changes in mental stress, undetectable by HRV, by using information about peripheral vessels measured by microwave radar without directly touching the body. We discuss possible application in driver state estimation via a driver–vehicle interface.
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References
Riener, A., et al.: Heart on the road: HRV analysis for monitoring a driver’s affective state. In: Proceedings of the First International Conference on Automotive User Interfaces and Interactive Vehicular Applications, pp. 99–106 (2009)
Williams, R.B.: Patterns of reactivity and stress. In: Matthews, K.A., Weiss, S.M., Detre, T., et al. (eds.) Handbook of Stress, Reactivity, and Cardiovascular Disease, pp. 109–125. Wiley, New York (1986)
Schneiderman, N., McCabe, P.M.: Psychophysiologic strategies in laboratory research. In: Schneiderman, N., Weiss, M., Kaufman, P.G. (eds.) Handbook or Research Methods in Cardiovascular Behavioral Medicine, pp. 349–364. Plenum Press, New York (1989)
Suzuki, S., Matsui, T., et al.: An approach to remote monitoring of heart rate variability (HRV) using microwave radar during an input task. J. Physiol. Anthropol. 30(6), 241–249 (2011)
Suzuki, S., Matsui, T., et al.: A novel autonomic activation measurement method for stress monitoring: non-contact measurement of heart rate variability using a compact microwave radar. Med. Biol. Eng. Comput. 46(7), 709–714 (2008)
Allen, M.T., Obrist, P.A., Sherwood, A., Crowell, M.D.: Evaluation of myocardial and peripheral vascular responses during reaction time, mental arithmetic, and cold pressor tasks. Psychophysiology 24, 648–656 (1987)
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This work was supported by the Overseas Research Program of Kansai University.
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Suzuki, S., Terazawa, Y., Kotani, K., Asao, T. (2019). Estimation of Mental Workload from Information About Peripheral Vessels by Non-contact Measurement Using Microwave Radar. In: Karwowski, W., Ahram, T. (eds) Intelligent Human Systems Integration 2019. IHSI 2019. Advances in Intelligent Systems and Computing, vol 903. Springer, Cham. https://doi.org/10.1007/978-3-030-11051-2_128
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DOI: https://doi.org/10.1007/978-3-030-11051-2_128
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