comparison the effect of increasing and decreasing contextual interference with the change motor program on the task of learning anticipation timing coincidence and error detection capability

The perpose of this study was comparison the effect of increasing and decreasing contextual interference with the change motor program on the task of learning anticipation timing coincidence and error detection capability. For this purpose، 40 students in 4 groups participated that in each group، 10 subjects were completely random. In this research، different levels of contextual interference (block، random، increasing and decreasing) was comared with with same paramere and different motor program. Respective task was anticipation timing coinsident that was represented whit different path (change motor program). After the training، they participated in retention and transfer tests and were assessed their Absolute error detection capabilities. Data have been analyzed by statistical one way Anova، repeated measurement and toky test. The results showed that the effect of contextual interference was observed and Increasing and decreasing groups in the absolute error and error detection capabilities were significant differences with other groups. significant differences between groups for error detection capability show more cognitive effort in high interference groups that it support the hypothesis of cognitive effort Lee، Swinnen and Serrien (1994).