The production of bimanual percussion in 12- to 24-month-old children
- 关键词：Bimanual ; Motor coordination ; Motor development ; Percussion ; Phase relationships
- 刊名：Infant Behavior and Development
- 出版年：2007
- 期刊代码：118_01636383
- 类别：med
- 出版时间：February 2007
- 卷：30
- 期：1
- 页码：2-15
- 文件大小：824 K
摘要
Bimanual coordination represents a complex self-organizing system that is subject to both internal and contextual constraints. Although there has been interest in examining bimanual development throughout the lifespan, few data exist relative to the bimanual activity of children between 1 and 4 years of age. The study reported here represents an initial effort to address this gap. Twenty-seven children who were either 12, 18 or 24 months old were videotaped while drumming with sticks on a plastic drum. Two independent observers recorded bout length as well as number and phase relation of movement cycles within bouts. Kinematic analysis provided more detailed information about the timing and form of children's activity. Results indicate that bimanual drumming becomes preferred over unimanual drumming by 2 years of age, that the proportions of different phase relations exhibited by children change between 1 and 2 years of age, and that the behavior appears to go through periods of stability and variability within this age range. These results are discussed in the context of the child's physical development and interactions with the environment during this period.