The effect of change in different characteristics in movements of two hands on transfer of asymmetrical bimanual movement to its converse pattern

The aim of this study was the evaluation of the effect of changes in different characteristics in movements of two hands on transfer of asymmetrical bimanual movement to its converse pattern, and effector-independent hypothesis from motor memory was investigated.
The instrument used in this study included pen Mouse, laptop, special glove and metronome. The subjects of the research were right-handed male students. Thirty right-handed subjects participated in the experiment, that practiced asymetrical bimanual coordination task In three groups. The movement patterns of two hands were different from each other in motor features (Group 1:The effect of gravity, Group 2:velocity pattern, 3:amplitude of movement). Each of the test groups after the practice run for four days and then tests were performed.
The results showed that when asymmetries in two hands that perform the bimanual movement is the effect of gravity on hands, transfer to vice versa pattern is positive. However, when the difference is in velocity pattern there is a positive transition and the transition is zero, and when the two hands movement patterns are different in amplitude of movement, transfer was negative.
The research shows that in terms of the differences in the pattern of asymmetric of two hands is controlled in what level of the hierarchy of nervous system, it is possible that bimanual movement transfer to reverse pattern or not. It can be concluded that the effector-independent hypothesis from motor memory in bimanual movement coordination depends on difference between the two hands special features,Soneed for revision.