運動中枢の解剖学的近接度と機能の相互干渉に関する研究(昭和57年度中京大学大学院体育学研究科修士論文抄録)

概要

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Functional localization of the motor cortex has been already noted, and voluntary movement is started by exciting the motor cortex. Natually, it is expected that each movement at two portions of the body is interfered strongly, if several motor centers which are near each other are excited simultaneously. The purpose of this study is to investingate the relationship between the anatomical distance of the motor cortex and the functional interference during voluntary movement in 10 right- and 12 left-handed students. The test required the subjects to tap by bilateral movements combinated index finger with middle finger in each hand and combinated each hand with each foot. In addition, single movement at eight parts in body was compared with paired movements as control experiment. The results were as follows : 1) Mean interval time of paired tapping movement is larger than that of single tapping movement. 2) Mean interval time of paired tapping movement in left-handedness is larger than in right-handedness. 3) The nearer the anatomical distance is, the stronger the functional interference of each movement at two portions of the body is. 4) The relationship between anatomical distance (X) in motor centers and functional interference (Y) was expressed as regression lines of ; Y = -0.211X + 27.333, r = -0.7109 (p < 0.001 ) in right-handedness and Y = -0.237X + 38.428, r = -0.8840 (p < 0.001 ) in left-handedness.
中京大学の論文
1983-03-20