Affording cooperation: Embodied constraints,dynamics, and action-scaled invariance in joint lifting |
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Authors: | Robert W Isenhower Michael J Richardson Claudia Carello Reuben M Baron Kerry L Marsh |
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Institution: | (1) Donders Institute for Brain, Cognition and Behaviour, Radboud University Nijmegen, Nijmegen, The Netherlands;(2) Dalhousie University, Halifax, NS, Canada |
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Abstract: | Understanding the physical and interpersonal constraints that afford cooperation during real-world tasks requires consideration
of the fit between the environment and task-relevant dimensions of coactors and the coactors’ fit with each other. In the
present study, we examined how cooperation can emerge during ongoing interaction using the simple task of two actors’ moving
long wooden planks. The system dynamics showed hysteresis: A past-action mode persisted when both solo and joint actions were
possible. Moreover, pairs whose arm spans were both short, both long, or mismatched made action-mode transitions at similar
points, when scaled by a relational measure. The relational measure of plank length to arm span was dictated by the pair member
with the shorter arm span, who, thus, had a greater need to cooperate during the task. The results suggest that understanding
affordances for cooperation requires giving more consideration to constraints imposed by the fit between coactors’ action
capabilities. |
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Keywords: | |
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