Group: Trunk orientation
Orientation is coded using an external element in the frame of reference, namely that of the interlocutor (the person addressed in the communication). So the body part is coded as either facing the interlocutor, or faced away from the interlocutor. Orientation is coded continuously and is body part specific.
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Facing
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The trunk is oriented towards the interlocutor when the shoulders and thorax (chest) are fully visible from the that point of view. The abdomen and thorax can have slightly different orientations when for example the hips are rotated relative to the upper body. In such cases consider only the thorax, and look at the shoulders. Trunk orientation is coded independently from head orientation.
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Averted
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The trunk is oriented away from the interlocutor when parts of the shoulders or thorax (chest) become less or unequally visible from that point of view. The abdomen and thorax can have slightly different orientations when for example the hips are rotated relative to the upper body. In such cases consider only the thorax, and look at the shoulders. Trunk orientation is coded independently from head orientation.
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