Department of Health, Physical Education, & Recreation, Utah State University.
J Exp Psychol Hum Percept Perform. 2013 Dec;39(6):1557-67. doi: 10.1037/a0031744. Epub 2013 Feb 11.
The prospective control of isometric force tracking was investigated as a function of the duration of visual information about past and future properties of target paths that varied in regularity. Longer duration of information specifying future behavior significantly enhanced performance when past information was not available. Furthermore, target path regularity differentially influenced local and global performance properties as the duration of prospective information increased. For more regular target paths, longer duration of prospective visual information improved local properties (e.g., decreased error), whereas, for less regular target paths, longer duration of prospective visual information enhanced global properties of force production (e.g., spectral slope). The strategies of prospective control depend on the interaction of the regularity of motor output and the available informational support.
研究了等长力跟踪的前瞻性控制，其功能是随目标路径规则性变化的过去和未来特性的视觉信息持续时间。当过去的信息不可用时，指定未来行为的信息持续时间越长，性能显著提高。此外，随着前瞻性信息持续时间的增加，目标路径规则性差异地影响了局部和全局性能特性。对于更规则的目标路径，更长的前瞻性视觉信息持续时间可以改善局部特性（例如，减少误差），而对于较不规则的目标路径，更长的前瞻性视觉信息持续时间可以增强力产生的全局特性（例如，谱斜率）。前瞻性控制策略取决于运动输出的规则性和可用信息支持的相互作用。
