The Impact Of Vmp On The Different Stages Of Reach-to-grasp Movement Under Various Visual Conditions

There was so much researches on visuomotor priming effect before. However, the research on the effect of the priming visuomotor in the reach-to-grasp developing stages reach-to-grasp movement and its different stages is not highly valued. In the Oliver's separated exploration of the two different stages in 2009,visual presentation condition was subject-within design. One new finding of the present study was the specific VMP effect during response execution. However, the reasons for his experimental design, there's no way to prove that the presence of the particular VMP effect in his research was the result of experimental design or there was indeed a specific visuomotor priming .The purpose of the research is that VMP has the influence on reach-to-grasp in different stages under different visual conditions.Research is divided into two experiments that all were mixed experimental design. To be tested reach-to-grasp movement plan preparation time and the reach-to-grasp movement execution time for the dependent variable index. Artificial or natural object image as experimental material, investigate VMP has the influence on reach-to-grasp in different stages under different visual conditions.The results show that: (1) VMP during the reach-to-grasp movement occurs only in the planning stages and affect it, without affecting the stage of response execution;(2) Different visual conditions will impact the appearance of VMP during the different stages of reach-to-grasp movement. In the early of visual objects presented ,subjects may choose to process the properties of visual object presented which related to the classification tasks. Only under the conditions of sufficient time, subjects will extract the behavior properties of visual objects which induce VMP.