形の場の力の方向の研究 (第二報告)

抄録

In my first report I stated that placing a small point at various places near a figure and studying the direction and the quantity of the displacement of the point by measuring the expansion and contraction of the phenomenal distance between the point and an auxiliary point, I found many interesting facts.
This method being indirect, I worked out some new ways of studying the displacement of the point more directly, and as a result of experimenting, I came to the counclusion that the same tendency sould be seen in the new method as well.
Following this I made a further study in detail of the displacement of the small point inside and outside a figure by means of the first method, which is comparatively easier to operate and greater in efficiency.
As a result, it has been found out that the direction of the displacement of the point lies in direct intersection with the equal potential line obtained by the formula based on the theory reported in Yokose's former report, and also that the greater the gradient of the potential, the greater the displacement. In other words, the curved line in Fig. 14 is the equal potential line obtained by Yokose's formula, and the arrows show the displacement direction of the point at those positions by the experimental results.
This relation is similar to the phenomenon of the equal electric potential and the electric force line around electric charge in physics. Hence, as in Kohler's theory of percept, I would like to postulate the psycho-physical field force-and hence the vector-field-of the cerebrum which corresponds to the figure. At the time, the results of the experiment show that a way for quantitative analysis of the vector-field in the study of shape has been opened.