...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Neurophysiology >Speed invariance of independent control of finger movements in pianists
【24h】

Speed invariance of independent control of finger movements in pianists

机译：独立控制钢琴演奏者手指运动的速度不变性

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Independent control of finger movements characterizes skilled motor behaviors such as tool use and musical performance. The purpose of the present study was to identify the effect of movement frequency (tempo) on individuated finger movements in piano playing. Joint motion at the digits was recorded while 5 expert pianists were playing 30 excerpts from musical pieces with different fingering and key locations either at a predetermined normal tempo or as fast as possible. Principal component analysis and cluster analysis using an expectation-maximization algorithm determined three distinct patterns of finger movement coordination for a keypress with each of the index, middle, ring, and little fingers at each of the two tempi. The finger kinematics of each coordination pattern was overall similar across the tempi. Tone sequences assigned into each cluster were also similar for both tempi. A linear regression analysis determined no apparent difference in the amount of movement covariation between the striking and nonstriking fingers at both metacarpo-phalangeal and proximal-interphalangeal joints across the two tempi, which indicated no effect of tempo on independent finger movements in piano playing. In addition, the standard deviation of interkeystroke interval across strokes did not differ between the two tempi, indicating maintenance of rhythmic accuracy of keystrokes. Strong temporal constraints on finger movements during piano playing may underlie the maintained independent control of fingers over a wider range of tempi, a feature being likely to be specific to skilled pianists.
机译：手指运动的独立控制可表征熟练的运动行为，例如使用工具和演奏。本研究的目的是确定运动频率（速度）对钢琴演奏中各个手指运动的影响。在5位专业钢琴演奏家以预定的正常速度或尽可能快的速度演奏具有不同指法和键位置的音乐作品的30摘录时，记录了数字的联合运动。使用期望最大化算法的主成分分析和聚类分析确定了三种不同的手指运动协调模式，这些键动的按键分别在两个节拍中分别处于食指，中指，无名指和小指。每个协调模式的手指运动学在整个节奏上总体相似。分配给每个簇的音调序列对于两个节奏也相似。线性回归分析确定，在两个节奏中，掌指趾关节和近指指间关节的敲击和非敲击手指之间的移动协方差量没有明显差异，这表明速度对钢琴演奏中独立手指运动没有影响。此外，两次敲击之间的击键间隔时间的标准偏差没有差异，这表明维持了击键的节奏准确性。在钢琴演奏过程中，手指运动受到强烈的时间限制可能是在较宽的节奏范围内保持手指独立控制的基础，这一特征很可能是熟练的钢琴家所特有的。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号