Assessment of phasic work stress using autonomic indices

Characterizing the psychophysiological signature of boredom

“…Results of this study converge with other research suggesting that boredom may be associated with inattention (Carriere, Cheyne, & Smilek, 2007;Cheyne, Carriere, & Smilek, 2006;Ohsuga et al, 2001;Pattyn et al, 2008 baseline, boredom, interest, sadness) as the within subjects factor, were conducted to determine whether the target emotions differed in intensity and valence across each of the four epochs.…”

“…Again, although the tasks were not intended to induce boredom, participants nevertheless reported experiencing boredom with results demonstrating an increase in HR during both tasks. This finding suggests that boredom can also be associated with increased arousal levels (Ohsuga, Shimono & Genno, 2001). …”

Convenient Evaluation of Mental Stress With Pupil Diameter

“…Heart rate variability is indicated by LF, MF (mid-frequency component), and HF, where the LF frequency band ranging from 0.04 to 0.15 Hz reflects both sympathetic and parasympathetic nerve activity and the HF frequency band ranging from 0.15 to 0.4 Hz reflects parasympathetic nerve activity. For that reason, sympathetic nerve activity can be represented by the value of LF/HF [10,11,12,13]. For comparison, the value of LF/HF at rest is 2.44.…”

Psychological state estimation from physiological recordings during robot-assisted gait rehabilitation

“…The breathing frequency was found to increase during stress [23], mental effort [24], and physical activity [25]. Skin temperature decreased during mental work stress in a study by Ohsuga et al [26] but increased with physical activity [27]. Other physiological recordings from the peripheral nervous system have been used as indicators of the psychophysiological state of a subject.…”