Dynamics of 1:2 Coordination: Sources of Symmetry Breaking. From: Journal of Motor Behavior | Date: September 1, 1999| Author: Saltzman, Elliot L.; Sternad, Dagmar; Turvey, M.T. | COPYRIGHT 1999 Heldref Publications. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan.  All inquiries regarding rights should be directed to the Gale Group.Copyright information

ABSTRACT. Three asymmetries in the dynamics of 1:2 interlimb coordination were examined: the asymmetry in uncoupled frequencies, the asymmetry in coupled frequencies, and the left-right functional asymmetry of the body. In a bimanual 1:2 task, participants (N = 8) oscillated hand-held pendulums whose uncoupled frequencies were adjusted so that the first kind of asymmetry could be manipulated. For any given pendulum pair, the pendulum assuming the faster motion in the 1:2 coordinati...

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