بازآزمايي اصول حركت دست در ترسيم كودكان مبتني بر ديدگاه سلسله مراتبي كنترل حركت

The Study of Principles of Drawing Movements Based on the Hierarchal Theory of Motor Control

In motor control studies drawing and hand writing has been studied from many points of view, the main purpose of present study is concerned with an analysis of the rules which suggested by Goodnow and Levien to tested the hierarchy hypothesis. One hundred and three individualʹs participated in this project. According to their age they were divided in to five groups(four consisted of children. the fifth was adult)and all subjects copied with their right hand. Fifteen designs were presented for each subject. Each subject being given as much time as he wished to draw. The practitioner recorded the direction and sequence of all strokes . Paths on correct copies were then analyzed for observance of rules . Of the seven principles suggested as rules, the fist two deal with starting points, the second two with starting strokes, and the final three with general progressions. Summing up the observations showed that there has been a significant different between the observation frequencies with expected frequencies about comparison patterns of hand movement with principles has been suggested. In choosing direction hand movements to drawing symmetric shape with ball movement (a movement task for adult group) the result showed a significant statically correlation(r=O/62 , p<.O/OI)between the two performances. In general results have shown that the pattern of hand movement may need to be changed across different configurations of the signs, direction of written(from left to right, or right to left, or even top to bottom)or shape.