Autonomic Response and Masseter Muscle Activity under Stress Loading

Okino, Kenji; Miyoshi, Jun; Kawada, Tsuyoshi; Matsuda, Yoh; Fujisawa, Masanori; Domon, Hiroki; Ishibashi, Kanji; Shobuzawa, Minoru

doi:10.7144/sgf1982.8.189

Cited by 2 publications

(1 citation statement)

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“…The EMG signals of the trapezius and sternocleidomastoid muscles had been applied as predictors of psychological and physiological stresses; however, the two muscles are more or less involved in driving operations and motions [ 14 , 15 ]. To resolve this problem, masseter EMG signals can be adopted to observe mental stress-induced changes [ 16 , 17 ]. In addition, there are thousands of published contributions on the study of mental stress indices, which were mainly concentrated on the application of the physiological signals like skin temperature, respiratory measures, blood pressure, EEG, and ECG [ 18 , 19 , 20 , 21 ].…”

Section: Introductionmentioning

confidence: 99%

Biosignal Analysis to Assess Mental Stress in Automatic Driving of Trucks: Palmar Perspiration and Masseter Electromyography

Zheng

Yamabe

Nakano

et al. 2015

Sensors

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Nowadays insight into human-machine interaction is a critical topic with the large-scale development of intelligent vehicles. Biosignal analysis can provide a deeper understanding of driver behaviors that may indicate rationally practical use of the automatic technology. Therefore, this study concentrates on biosignal analysis to quantitatively evaluate mental stress of drivers during automatic driving of trucks, with vehicles set at a closed gap distance apart to reduce air resistance to save energy consumption. By application of two wearable sensor systems, a continuous measurement was realized for palmar perspiration and masseter electromyography, and a biosignal processing method was proposed to assess mental stress levels. In a driving simulator experiment, ten participants completed automatic driving with 4, 8, and 12 m gap distances from the preceding vehicle, and manual driving with about 25 m gap distance as a reference. It was found that mental stress significantly increased when the gap distances decreased, and an abrupt increase in mental stress of drivers was also observed accompanying a sudden change of the gap distance during automatic driving, which corresponded to significantly higher ride discomfort according to subjective reports.

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