Abstract
The purpose of the present study was to investigate the role of vision and audition in the coordination of in-phase and anti-phase movement patterns at increasing frequency of oscillation in a bimanual linear slide task. The dependent variables were mean error of relative phase and standard deviation of relative phase. Results indicated that vision and audition did not influence the accuracy and the variability in performance of the two relative phase patterns, whereas increasing frequency influenced the performance of the anti-phase pattern, but not the in-phase pattern. As a potential explanation of the current findings, it is hypothesized that the bimanual linear coordination task did not rely on vision and audition because the task was perhaps governed by proprioception. With consideration for specific motor tasks, investigating the role of vision, audition, and proprioception on the performance of coordinative movements remains an important question for continued research.
Highlights
Coordinative movements are believed to be a good representation of how the motor system performs complex movements [1,2,3,4,5,6]
The purpose of the present study was to investigate the influence of vision and audition on bimanual timing coordination for in-phase and anti-phase patterns at increasing frequency of oscillation for a linear slide task
Results failed to indicate any clear evidence that the presence of vision and/or audition influenced the performance of either inphase or anti-phase movement patterns
Summary
Coordinative movements are believed to be a good representation of how the motor system performs complex movements [1,2,3,4,5,6]. Kelso [12, 13] developed a task environment to study dual limb coordinative movements in which two stable patterns were identified: 0o relative phase (in-phase) and 180o relative phase (anti-phase). In the in-phase pattern, the limbs move toward and away from each other symmetrically and continuously using homologous muscle group contractions. In the anti-phase pattern, the limbs move together in an isodirectional fashion with homologous muscle groups contracting in an alternating fashion. If not resisted, when the speed of performing these coordinative patterns increases beyond 2.25 Hz, the anti-phase pattern destabilizes and transitions into the in-phase pattern [12, 13]. If the transition is resisted, the destabilized anti-phase pattern is reflected by highly variable performance [14]. The in-phase pattern is unaffected by increased movement frequency
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