Magill R A, Reeve T G
Percept Mot Skills. 1978 Feb;46(1):107-10. doi: 10.2466/pms.1978.46.1.107.
The schema theory prediction that variability of practice would influence the strength of the motor response schema was investigated. Three groups of subjects, defined by much, little, or no variability of distances moved in prior practice on a linear-slide apparatus, completed 12 initial practice trials. Subjects then had 10 trials to estimate a novel distance from a new starting point. Knowledge of results was provided on the first three trials and withdrawn on the last seven trials. No differences in accuracy of production of the novel distance were noted although evidence for a stronger-schema by the group with little variability was noted on the second transfer trial. On the trials on which knowledge of results was withdrawn this stronger schema group maintained performance while the other two groups showed a decrement in performance.
对图式理论中关于练习变异性会影响运动反应图式强度的预测进行了研究。三组受试者，根据他们之前在直线滑动装置上练习时移动距离的多变、少变或不变来定义，完成了12次初始练习试验。然后，受试者有10次试验来从一个新的起点估计一个新的距离。在前三次试验中提供结果反馈，在后七次试验中撤回结果反馈。尽管在第二次迁移试验中注意到变异性小的组有更强图式的证据，但在新距离产生的准确性上未发现差异。在撤回结果反馈的试验中，这个更强图式组保持了表现，而其他两组表现下降。
