Concurrent Cognitive Task Modulates Coordination Dynamics

Does a concurrent cognitive task affect the dynamics of bimanual rhythmic coordination? In‐phase coordination was performed under manipulations of phase detuning and movement frequency and either singly or in combination with an arithmetic task. Predicted direction‐specific shifts in stable relative...

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Bibliographic Details
Published in:Cognitive science 2005-07, Vol.29 (4), p.531-557
Main Authors: Pellecchia, Geraldine L., Shockley, Kevin, Turvey, M. T.
Format: Article
Language:English
Subjects:
Activity levels. Psychomotricity
Arithmetic
Biological and medical sciences
Cognition
Cognition & reasoning
Cognitive Processes
Coordination
Dynamics
Fundamental and applied biological sciences. Psychology
Motion
Motor ability
Performance Tests
Psychology. Psychoanalysis. Psychiatry
Psychology. Psychophysiology
Psychomotor activities
Psychomotor Skills
Task analysis
Time Perspective
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Summary:Does a concurrent cognitive task affect the dynamics of bimanual rhythmic coordination? In‐phase coordination was performed under manipulations of phase detuning and movement frequency and either singly or in combination with an arithmetic task. Predicted direction‐specific shifts in stable relative phase from 0° due to detuning and movement frequency were amplified by the cognitive task. Nonlinear cross‐recurrence analysis suggested that this cognitive influence on the locations of the stable points or attractors of coordination entailed a magnification of attractor noise without a reduction in attractor strength. An approximation to these findings was achieved through parameter changes in a motion equation in relative phase. Results are discussed in terms of dual‐task performance as limited resources, dynamics rather than chronometrics, and reparameterization rather than degradation.
ISSN:0364-0213
1551-6709
DOI:10.1207/s15516709cog0000_12