Movement interference during action observation as emergent coordination |
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Authors: | Richardson Michael J Campbell Walter L Schmidt R C |
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Affiliation: | Department of Psychology, Colby College, Waterville, ME 04901, USA. mjrichar@colby.edu |
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Abstract: | Previous research has demonstrated that when an actor coordinates with spatially incompatible movements of another individual that motor interference occurs-the rhythmic arm movements of the actor exhibit increased movement variability in the plane orthogonal (non-instructed) to the instructed plane of motion. Here we examine whether this motor contagion reflects not error but the spontaneous recruitment of additional task-specific movement degrees of freedom employed to withstand increasing task difficulty. Participants coordinated congruent and incongruent forearm movements with a confederate moving at a fast, moderate, and slow target frequency. Examining the variability in the non-instructed plane revealed oscillatory non-instructed plane movements that were coordinated with the instructed plane movements of the confederate. The results suggest motor interference during incongruent coordination can be understood as an emergent, task-specific property of the coordination goal. |
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Keywords: | Motor interference Movement compatibility Rhythmic coordination Self-organized perceptual-motor entrainment |
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