| Self-centred gestures |
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| Touching head |
Hand touches any point on the face, defined from the jaw line upwards, inclusive of scalp, eyes and ears. |
| Touching neck |
Hand touches any point on the circumference of the neck, from thorax to nape. |
| Touching arms |
Hand touches opposite arm, from and inclusive of hand to shoulder. |
| Touching torso |
Hand touches upper torso - defined from sternum to collarbone and deltoid to deltoid. |
| Non-verbal facial activities |
|
| Yawn |
Progressive, involuntary opening of mouth during deep inhalation. A closed or open hand may move to cover the mouth during a yawn. |
| Stretch face |
Extension of facial muscles without hands present. May include: stretching of facial features along horizontal or vertical axes, exaggerated raising of eyebrows, or tightening and slight recession of ears and scalp. |
| Licking lip |
Extension of tongue onto upper or lower lips, which may be held stationary, or moved horizontally in either direction across the chosen lip. |
| Biting lip |
Insertion of either upper or lower lip into the mouth until held between upper and lower front teeth. Both lips may be inserted at the same time. |
| Postural Adjustments |
|
| Tilt torso |
Tilting of torso in any direction, keeping original point of contact on the seat. |
| Tilt head |
Tilting of head in any direction, keeping original neck position. A tilting behaviour is not to be recorded if it is a function of another behaviour. i.e. tilting head left to scratch the head. |
| Shift position |
Relocation of seating position marked by the brief rising to fall into a new position on the seat. Rising can occur either through the use of one or two hands pushing down against the armrests, or brief and partial propulsion by the legs. |
| Exercise shoulders |
Movement of one or both shoulders in a backwards direction, stretching the shoulders and chest. One or both shoulders may also be rotated from the torso in a clockwise or anticlockwise direction, stretching the shoulders and chest. |
| Stretch arms |
Removal of one or both arms from the steering wheels and full extension of one or both elbow joints, resulting in a stretch of the respective arms muscles. |
| Non-self-centred-gestures |
|
| Play with hair |
Hand extends to hair on scalp or face and commences one of the following behaviours: wrapping hair around fingers, repetitively stroking hair mass, tugs hair against follicle roots, or moving fingers through or under hair mass. |
| Tap fingers |
Repetitive initiation and cessation of contact of one or more fingers against a surface. If multiple fingers are in use, they may tap in consecutive motion. |
| Touch environment |
One or more of digits removed from the steering wheel and placed on an inanimate piece of the surrounding environment. i.e. chair, simulator cupboard. |
| Eye closures |
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| Closed eyes (>1s) |
Simultaneous closing of both eyelids for a duration lasting for greater than one second. |
