Abstract
The purpose of the experiment was to determine the influence of Lissajous feedback on 1:1 bimanual coordination patterns (0°, 90°, and 180° phase lags) when the movement amplitudes of the two limbs were different (30°, 60°). The present data supports the notion that the lead–lag relationship as well as amplitude assimilation observed in the literature can be partially attributed to the visual-perceptual factors present in the testing environment. When participants are provided integrated feedback in the form of Lissajous plots much of the lead–lag and amplitude assimilation effects were eliminated, and relative phase error and variability were also greatly reduced after only 3 min of practice under each condition.
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Kovacs, A.J., Shea, C.H. Amplitude differences, spatial assimilation, and integrated feedback in bimanual coordination. Exp Brain Res 202, 519–525 (2010). https://doi.org/10.1007/s00221-009-2154-1
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DOI: https://doi.org/10.1007/s00221-009-2154-1