A bimanual coordinative pattern consists of the movement frequency, movement amplitude, and relative phase between the two hands. This study examined a role of the movement amplitude to timing in the bimanual coordination. 12 subjects (8 men and 4 women; mean age of 21.8 yr.) reproduced 1:1, 2:1, 3:1, 3:2, and 5:3 polyrhythmic tapping patterns. No difference was shown between the amplitudes of the two hands in each pattern. However, the amplitude of complex (3:2 and 5:3) patterns was larger than of simple (1:1, 2:1, and 3:1) patterns. It is concluded that the complicated timing control is attained by increasing the amplitude.
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References
1.
BrydenM. P. (1977) Measuring handedness with questionnaires. Neuropsychologia, 15, 617–624.
2.
HakenH.PeperC. E.BeekP. J., & DaffertshoferA. (1996) A model for phase transitions in human hand movements during multifrequency tapping. Physica D, 90, 179–196.
3.
KelsoJ. A. S. (1984) Phase transitions and critical behavior in human bimanual coordination. American Journal of Physiology, 240, R1000–R1004.
4.
KelsoJ. A. S., & SchönerG. (1988) Self-organization of coordinative movement patterns. Human Movement Science, 7, 27–46.
5.
PeperC. E., & BeekP. J. (1998) Distinguishing between the effects of frequency and amplitude on interlimb coupling in tapping a 2:3 polyrhythm. Experimental Brain Research, 118, 78–92.
6.
TajimaM., & ChoshiK. (2000) Effects of learning and movement frequency on polyrhythmic tapping performance. Perceptual and Motor Skills, 90, 675–690.
