标题:β運動視の発達に関する研究IV : 図形の方向的力動性について : 2.発達1 [in Japanese] A study on the development of visual β movement. (IV) On the directional dynamics of figures. (V) The effect of figural identity on three dimensional β movement. : LIST OF PAPERS PRESENTED AT THE THIRD ANNUAL CONVENTION OF THE JAPANESE ASSOCIATION OF EDUCATIONAL PSYCHOLOGY October 17-21,1961,Nagoya : Division 1 : Developmental [in Japanese]