The study investigated repeated errors in motion tasks and their correction by
means of irrelevant task features. Participants were presented a video with dance motions
which they had to synchronously repeat. The same set of 8 easy motions was repeated
20 times, with a break after 10 repetitions. In the experimental group, there was a change of
presenter on the video (from man to women or vice versa) after the break. The control group
continued the task without any changes. We compare the amount of repeated errors within
groups on different parts of the experiment and between groups. It was shown that in both
groups there were fewer repeated errors after the break. There were no differences in the
possibility of repeated errors between groups before the break. After the break, there were
fewer repeated errors in the experimental group than in the control group. Thus, it appears
that the changing of an irrelevant feature (presenter of the motion task) led to the decrease
in error repetition.