مقايسه اثر بازخورد پس از كوشش هاي خوب و ضعيف در شرايط خود كنترلي و آزمونگر كنترلي بر اجرا و يادگيري تكليف توليد نيرو

Comparison Feedback After Good and Poor Trials in Self -Control and Instructor- Control Condition in Acquisition and learning of Force-Production Task

This study aimed to compare feedback after good and poor trials in self-control and instructor-control conditions on acquisition and learning of force production task. Subjects were randomly divided into three groups: instructor-control feedback after good and poor trials and self-control feedback groups. All participants produced 15 kg force in acquisition phase. They couldnʹt see the produced force amount and received KR on two trials in each 6-trial block. At the end of acquisition phase, subjects of self-control feedback group were divided into 2 groups of self-control feedback after good and poor trails. After 24 hour, they performed a retention and transfer tests without KR. To analyze data, one - way ANOVA and post hoc test were used (P<5%). Results showed in the instructor-control condition, feedback after good trials group and in the self-control condition, subjects who asked for the feedback after their poor trials had better learning and in comparison of two conditions, self-control feedback after poor trials group was better than the other groups. It seems in instructor-control condition, learning is facilitated when feedback is provided after good trial. But in self-control condition which have motivational role in nature, subjects who asked for the feedback after their poor trials, because of use simultaneously from motivational and informative role of augmented feedback in this group led to more learning.