Ikuko Shibuya1 and Takashi Kawanabe2
1Osaka Seikei College, Japan 2Ritsumeikan University ,Japan
Scientific Tracks Abstracts: J Psychol Abnorm Child
Tool use is a goal-oriented manipulation of an object that demands highly cognitive efforts. Shibuya demonstrated that some children notably lacked the precision to cut figures on a paper although they appropriately held scissors. This might be caused by poor motor planning and control. This study aimed to examine children�??s knowledge of a strategy of the motor planning and control to use scissors purposefully. Study 1 investigated how children understood the knowledge of �??trade-off�?� relationship between motor speed and motor accuracy. It was hypothesized that children who understood the �??trade-off�?� relationship would be good at motor planning which would let them cut a circle accurately. As a result, predictably, the first-graders could answer more correctly and cut more accurately than the preschoolers, but the motor speed of cutting a circle was not much different. Then, the children were classified into two groups according to their response to the knowledge problems; �??well understanding�?� and �??poor understanding�?�. The �??well understanding�?� group cut more accurately than the other group in a marginal significance. However, several children in the �??poor understanding�?� group cut a circle without any error and vice versa. These results suggest that the knowledge of �??trade-off�?� relationship partly influences children�??s motor performance, but it is just one of the factors. In Study 2, based on the results of Study 1, we focused on the different aspects of children�??s knowledge related to movement, that is, the knowledge of smooth bimanual coordination strategy. Specifically, whether the children understood that bracing and rotating a paper by non-dominant hand affect motor accuracy was examined. Based on the results of Study 1 and 2, the influence of children�??s recognition related to movement on their motor performance will be discussed in the session.
Ikuko Shibuya specializes in Developmental and Clinical Psychology. She is currently working as an Associate Professor at the Department of Preschool Education of Osaka Seikei College.