Smith P J, Taylor S J, Withers K
School of Sport, Health, and Physical Education Sciences, University of Wales-Bangor.
Res Q Exerc Sport. 1997 Sep;68(3):215-21. doi: 10.1080/02701367.1997.10608000.
Bandwidth knowledge of results (KR) involves the presentation of precise error KR only on those trials in which a preset criterion of accuracy is not met. When the criterion is met, only a general statement referring to this success is given. It has been shown that bandwidth KR increases movement consistency relative to 100% relative frequency KR (Lee & Carnahan, 1990). While this and other KR schedules have been successful in promoting motor learning, there has been no attempt to generalize this finding to a motor task requiring whole-body coordination. This study examined whether, by using information feedback suited to a complex task (Kernodle & Carlton, 1992), the findings relating to bandwidth feedback would transfer to such a task. Participants practiced a golf chipping task with either KR or error correcting transitional information, under 0, 5, or 10% bandwidth conditions. Participants in the 10% bandwidth condition who had received transitional information performed more consistently in retention than all other participants. This result provides support for the generalization of bandwidth feedback principles to complex tasks.
结果带宽知识（KR）仅在未达到预设准确性标准的试验中呈现精确的误差KR。当达到标准时，仅给出关于这一成功的一般性陈述。研究表明，与100%相对频率KR相比，带宽KR提高了动作一致性（Lee & Carnahan，1990）。虽然这种及其他KR计划在促进运动学习方面取得了成功，但尚未有人尝试将这一发现推广到需要全身协调的运动任务中。本研究考察了通过使用适合复杂任务的信息反馈（Kernodle & Carlton，1992），与带宽反馈相关的发现是否会转移到这样的任务中。参与者在0%、5%或10%带宽条件下，通过KR或纠错过渡信息练习高尔夫切球任务。在接受过渡信息的10%带宽条件下的参与者在保持阶段的表现比所有其他参与者更一致。这一结果为将带宽反馈原则推广到复杂任务提供了支持。
