Effect of type of attentioal instruction and increasing frequency on relative phase stability of coordination bimanual movements

The purpose of present research was to answer to this question that how attentional instructions and increasing frequency of movement impress on relative phase stability in coordination bimanual movements? Participants (N=14) practiced in phase and anti phase under internal and external attention and increasing frequency. In acquisition phase apply external v. internal attention and after each trial KP were given to subjects. On delayed retention test no render specific instruction. The results revealed that no difference between internal and external attention about affect on phase stability on in phase and anti phase patterns. Also increase frequency of movement lead to higher variability in anti phase and higher stability on in phase.