Variations of the level of vigilance and of behavioural activities during simulated automobile driving

Interactive Model of Subsidiary Behaviors, Work Performance and Autonomic Nerve Activity during Visual Display Terminal Work

“…It might be appropriate to regard the subsidiary behaviors included in the first factor as DBM. These behaviors corresponded to postural adjustments according to Rogé et al 21) , comfort movements according to Cosnier 27) , and postural readjustments according to Delvolvé et al 11) .…”

“…Subsidiary behaviors in the third factor termed HB (play with hair, scratch cheeks, run hands over arms) corresponded to ludic activities according to Rogé et al 21) and auto-manipulative gestures 11) . However, Kishida 10) reported that there were also individual differences in the occurrence of activities such as touching head (fixing hair), which were included in the third factor in this study.…”

“…Scientists have distinguished some categories such as postural movements, verbal and nonverbal activities 11,21,23,25,27) . However, none of these classifications have been verified for reliability.…”

“…The second factor included scratch head, rub eye(s), sigh, and yawn, which were classified as "non-verbal activities that can be observed on the face" by Rogé et al 21) and termed SRB by Hirose et al 25) , who reported that the decline in arousal level caused by monotonous work induces such activities.…”

“…Kishida 7,10) defined subsidiary behaviors as those that aid in escaping from monotony, repetitive tasks, or a perpetually constrained posture. Substitution activities 17) , substitute or redirected activities 18) , superstitious conduct 19) , non-specific activities 20) , subsidiary activities 20) , additional activities 11) , collateral activities 13) , and behavioral activities 21) , all express a concept identical to Kishida's 7,10) . The appearance of subsidiary behaviors allows workers to escape from the monotony of work or prevent a decline in work performance 22,23) .…”