TY - JOUR
T1 - Is dynamics the content of a generalized motor program for rhythmic interlimb coordination?
AU - Amazeen, Polemnia
N1 - Funding Information:
Thc author acknowledges the many contributions of Claudia Carello and Michael Turvey. This research was part of a doctoral dissertation in experimental psychology at the University of Connecticut. Both a University of Connecticut doctoral dissertation fello\sship awarded to the author and National Science Foundation Gram SBR 97-28970 awarded to M. T. Turvey supported the research. Grant USF'96 awarded to P. J. Beek by the Vrije Uni-versik-it in Amsterdam provided additional support for attractor recoiimuction.
PY - 2002/9
Y1 - 2002/9
N2 - In 3 experiments, the author tested the hypothesis that coordination dynamics is the content of a generalized motor program (GMP) for rhythmic interlimb coordination. In Experiment 1, learners (N = 14) practiced a −90° movement with either identically timed or differently timed limbs. Both acquisition and transfer to novel (effector and pattern) timings were unaffected by the learning condition and were suggestive of the intrinsic dynamics for in-phase and antiphase. In Experiment 2, learners' (N = 13) acquisition of 2 different phase relations (−90° and −45°) was qualitatively identical. Attractor reconstruction revealed an increase in the predictability of individual movement trajectories and a decrease in attractor dimensionality over learning. Transfer for both −90° and −45° was again suggestive of the intrinsic dynamics. In Experiment 3, learning altered participants' (N = 8) performance of in-phase and antiphase relations. Together, the results suggested a single continuum of phase relations, called an attractor landscape, that produces similar patterns of CE and VE for both previously stable and learned coordinations.
AB - In 3 experiments, the author tested the hypothesis that coordination dynamics is the content of a generalized motor program (GMP) for rhythmic interlimb coordination. In Experiment 1, learners (N = 14) practiced a −90° movement with either identically timed or differently timed limbs. Both acquisition and transfer to novel (effector and pattern) timings were unaffected by the learning condition and were suggestive of the intrinsic dynamics for in-phase and antiphase. In Experiment 2, learners' (N = 13) acquisition of 2 different phase relations (−90° and −45°) was qualitatively identical. Attractor reconstruction revealed an increase in the predictability of individual movement trajectories and a decrease in attractor dimensionality over learning. Transfer for both −90° and −45° was again suggestive of the intrinsic dynamics. In Experiment 3, learning altered participants' (N = 8) performance of in-phase and antiphase relations. Together, the results suggested a single continuum of phase relations, called an attractor landscape, that produces similar patterns of CE and VE for both previously stable and learned coordinations.
KW - Attractor
KW - Coordination
KW - Dynamics
KW - Generalized motor program (GMP)
KW - Learning
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U2 - 10.1080/00222890209601943
DO - 10.1080/00222890209601943
M3 - Article
C2 - 19260175
AN - SCOPUS:0036720812
SN - 0022-2895
VL - 34
SP - 233
EP - 251
JO - Journal of Motor Behavior
JF - Journal of Motor Behavior
IS - 3
ER -